Two-party System In The United States
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A two-party system is a
political Politics (from , ) is the set of activities that are associated with making decisions in groups, or other forms of power relations among individuals, such as the distribution of resources or status. The branch of social science that studies ...
party system A party system is a concept in comparative political science concerning the system of government by political parties in a democratic country. The idea is that political parties have basic similarities: they control the government, have a stabl ...
in which two
major Major (commandant in certain jurisdictions) is a military rank of commissioned officer status, with corresponding ranks existing in many military forces throughout the world. When used unhyphenated and in conjunction with no other indicators ...
political parties A political party is an organization that coordinates candidates to compete in a particular country's elections. It is common for the members of a party to hold similar ideas about politics, and parties may promote specific ideological or pol ...
consistently dominate the political landscape. At any point in time, one of the two parties typically holds a majority in the
legislature A legislature is an assembly with the authority to make law Law is a set of rules that are created and are enforceable by social or governmental institutions to regulate behavior,Robertson, ''Crimes against humanity'', 90. with its p ...
and is usually referred to as the ''majority'' or ''governing party'' while the other is the ''minority'' or ''opposition party''. Around the world, the term has different meanings. For example, in the
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territorie ...
,
the Bahamas The Bahamas (), officially the Commonwealth of The Bahamas, is an island country within the Lucayan Archipelago of the West Indies in the Atlantic Ocean, North Atlantic. It takes up 97% of the Lucayan Archipelago's land area and is home to ...
,
Jamaica Jamaica (; ) is an island country situated in the Caribbean Sea. Spanning in area, it is the third-largest island of the Greater Antilles and the Caribbean (after Cuba and Hispaniola). Jamaica lies about south of Cuba, and west of His ...
,
United Kingdom The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Europe, off the north-western coast of the continental mainland. It comprises England, Scotland, Wales and North ...
and
Zimbabwe Zimbabwe (), officially the Republic of Zimbabwe, is a landlocked country located in Southeast Africa, between the Zambezi and Limpopo Rivers, bordered by South Africa to the south, Botswana to the south-west, Zambia to the north, and Mozam ...
, the sense of ''two-party system'' describes an arrangement in which all or nearly all
elected official An official is someone who holds an office (function or Mandate (politics), mandate, regardless whether it carries an actual Office, working space with it) in an organization or government and participates in the exercise of authority, (either th ...
s belong to either of the two major parties, and third parties rarely win any seats in the legislature. In such arrangements, two-party systems are thought to result from several factors, like "winner takes all" or "first past the post" election systems.Regis Publishing
The US System: Winner Takes All
Accessed August 12, 2013, "...Winner-take-all rules trigger a cycle that leads to and strengthens a system of few (two in the US) political parties..."

The Two Party System, Boundless Publishing
Two-party systems are prominent in various countries, such as the U.S., and contain both advantages and disadvantages
, Accessed August 12, 2013 "...There are two main reasons winner-takes-all systems lead to a two-party system...",
Eric Black, Minnpost, October 8, 2012
Why the same two parties dominate our two-party system
, Accessed August 12, 2013, "...SMDP (single-member districts, plurality) voting system. ... This forces those who might favor a minor party candidate to either vote for whichever of the two biggest parties the voter dislikes the least, or to risk the likelihood that their vote will be "wasted" or, worse, that they will end up helping the major-party candidate whom the voter dislikes the most to win. Minor parties aren’t banned, but they seldom produce a plurality winner, and their lack of success often causes the minor parties to wither and die...."
In such systems, while chances for third-party candidates winning election to major national office are remote, it is possible for groups within the larger parties, or in opposition to one or both of them, to exert influence on the two major parties.Patrick Bashan, CATO Institute, June 9, 2004
Do Electoral Systems Affect Government Size?
, Accessed August 12, 2013, "...The current system has many disadvantages, most notably its propensity to discriminate against minor parties operating outside the increasingly uncompetitive, cozy two-party system.... America’s winner-takes-all electoral system may be the least bad option for those seeking to limit government involvement in the nation’s economic life...."
Two Party System, PBS

, Accessed August 12, 2013, "...Third-party or independent candidates face a slew of obstacles in American politics, from limited media coverage to legal barriers and Congressional leadership rules. Laws regarding third-party candidates also vary from state to state, presenting additional difficulties...."
Chris Cillizza and Aaron Blake, May 18, 2012, The Washington Post

, Accessed August 11, 2013
In contrast, in
Canada Canada is a country in North America. Its ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, covering over , making it the world's second-largest country by tot ...
, the
United Kingdom The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Europe, off the north-western coast of the continental mainland. It comprises England, Scotland, Wales and North ...
and
Australia Australia, officially the Commonwealth of Australia, is a Sovereign state, sovereign country comprising the mainland of the Australia (continent), Australian continent, the island of Tasmania, and numerous List of islands of Australia, sma ...
and in other
parliamentary system A parliamentary system, or parliamentarian democracy, is a system of democratic governance of a state (or subordinate entity) where the executive derives its democratic legitimacy from its ability to command the support ("confidence") of the ...
s and elsewhere, the term ''two-party system'' is sometimes used to indicate an arrangement in which two major parties dominate elections but in which there are viable third parties that do win some seats in the legislature, and in which the two major parties exert proportionately greater influence than their percentage of votes would suggest. Explanations for why a political system with free elections may evolve into a two-party system have been debated. A leading theory, referred to as Duverger's law, states that two parties are a natural result of a winner-take-all voting system.


Examples


Commonwealth countries

In countries such as
Britain Britain most often refers to: * The United Kingdom, a sovereign state in Europe comprising the island of Great Britain, the north-eastern part of the island of Ireland and many smaller islands * Great Britain, the largest island in the United King ...
, two major parties emerge which have strong influence and tend to elect most of the candidates, but a multitude of lesser parties exist with varying degrees of influence, and sometimes these lesser parties are able to elect officials who participate in the legislature. Political systems based on the Westminster system, which is a particular style of
parliamentary democracy A parliamentary system, or parliamentarian democracy, is a system of democratic governance of a state (or subordinate entity) where the executive derives its democratic legitimacy from its ability to command the support ("confidence") of the ...
based on the British model and found in many commonwealth countries, a majority party will form the
government A government is the system or group of people governing an organized community, generally a state. In the case of its broad associative definition, government normally consists of legislature, executive, and judiciary. Government is a ...
and the minority party will form the
opposition Opposition may refer to: Arts and media * ''Opposition'' (Altars EP), 2011 EP by Christian metalcore band Altars * The Opposition (band), a London post-punk band * ''The Opposition with Jordan Klepper'', a late-night television series on Comed ...
, and coalitions of lesser parties are possible; in the rare circumstance in which neither party is the majority, a
hung parliament A hung parliament is a term used in legislatures primarily under the Westminster system to describe a situation in which no single political party or pre-existing coalition (also known as an alliance or bloc) has an absolute majority of legisl ...
arises. Sometimes these systems are described as ''two-party systems'' but they are usually referred to as ''multi-party'' systems or a ''two-party plus'' system. There is not always a sharp boundary between a two-party system and a multi-party system. Generally, a two-party system becomes a dichotomous division of the political spectrum with an ostensibly
left-wing Left-wing politics describes the range of political ideologies that support and seek to achieve social equality and egalitarianism, often in opposition to social hierarchy. Left-wing politics typically involve a concern for those in soci ...
and
right-wing Right-wing politics describes the range of political ideologies that view certain social orders and hierarchies as inevitable, natural, normal, or desirable, typically supporting this position on the basis of natural law, economics, authorit ...
party: the
Democratic Party Democratic Party most often refers to: *Democratic Party (United States) Democratic Party and similar terms may also refer to: Active parties Africa *Botswana Democratic Party *Democratic Party of Equatorial Guinea *Gabonese Democratic Party *Demo ...
versus the Republican Party in the United States, the Labor Party versus the
Liberal–National Coalition The Liberal–National Coalition, commonly known simply as "the Coalition" or informally as the LNP, is an political alliance, alliance of Centre-right politics, centre-right political parties that forms one of the two major groupings in Politic ...
bloc in Australia, the Labour Party versus the
Conservative Party The Conservative Party is a name used by many political parties around the world. These political parties are generally right-wing though their exact ideologies can range from center-right to far-right. Political parties called The Conservative P ...
in the United Kingdom, and the Labour Party versus the Nationalist Party in
Malta Malta ( , , ), officially the Republic of Malta ( mt, Repubblika ta' Malta ), is an island country in the Mediterranean Sea. It consists of an archipelago, between Italy and Libya, and is often considered a part of Southern Europe. It lies ...
. Other parties in these countries may have seen candidates elected to
local Local may refer to: Geography and transportation * Local (train), a train serving local traffic demand * Local, Missouri, a community in the United States * Local government, a form of public administration, usually the lowest tier of administrat ...
or subnational office, however. In some governments, certain chambers may resemble a two-party system and others a
multi-party system In political science, a multi-party system is a political system in which multiple political parties across the political spectrum run for national elections, and all have the capacity to gain control of government offices, separately or in coal ...
. For example, the
politics of Australia The politics of Australia take place within the framework of a federal parliamentary constitutional monarchy. Australia has maintained a stable liberal democratic political system under its Constitution, one of the world's oldest, since Fe ...
are largely two-party (the
Liberal Liberal or liberalism may refer to: Politics * a supporter of liberalism ** Liberalism by country * an adherent of a Liberal Party * Liberalism (international relations) * Sexually liberal feminism * Social liberalism Arts, entertainment and m ...
/
National National may refer to: Common uses * Nation or country ** Nationality – a ''national'' is a person who is subject to a nation, regardless of whether the person has full rights as a citizen Places in the United States * National, Maryland, ce ...
Coalition is often considered a single party at a national level due to their long-standing alliance in forming governments; they also rarely compete for the same seats for the
Australian House of Representatives The House of Representatives is the lower house of the bicameral Parliament of Australia, the upper house being the Senate. Its composition and powers are established in Chapter I of the Constitution of Australia. The term of members of the ...
, which is elected by
instant-runoff voting Instant-runoff voting (IRV) is a type of ranked preferential voting method. It uses a majority voting rule in single-winner elections where there are more than two candidates. It is commonly referred to as ranked-choice voting (RCV) in the Un ...
, known within Australia as preferential voting. However, third parties are more common in the
Australian Senate The Senate is the upper house of the Bicameralism, bicameral Parliament of Australia, the lower house being the House of Representatives (Australia), House of Representatives. The composition and powers of the Senate are established in Chapter ...
, which uses a
proportional voting system Proportional representation (PR) refers to a type of electoral system under which subgroups of an electorate are reflected proportionately in the elected body. The concept applies mainly to geographical (e.g. states, regions) and political divis ...
more amenable to minor parties. In
Canada Canada is a country in North America. Its ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, covering over , making it the world's second-largest country by tot ...
, there is a multiparty system at the federal and provincial levels; however, some provinces have effectively become two-party systems in which only two parties regularly get members elected, while smaller parties largely fail to secure electoral representation, and two of the three territories are run under a non-partisan consensus government model rather than through a political party system. The provincial legislative assemblies of
Alberta Alberta ( ) is one of the thirteen provinces and territories of Canada. It is part of Western Canada and is one of the three prairie provinces. Alberta is bordered by British Columbia to the west, Saskatchewan to the east, the Northwest Ter ...
and
Saskatchewan Saskatchewan ( ; ) is a Provinces and territories of Canada, province in Western Canada, western Canada, bordered on the west by Alberta, on the north by the Northwest Territories, on the east by Manitoba, to the northeast by Nunavut, and on t ...
currently have only two parties; two-party representation has also historically been common in the legislative assemblies of
British Columbia British Columbia (commonly abbreviated as BC) is the westernmost province of Canada, situated between the Pacific Ocean and the Rocky Mountains. It has a diverse geography, with rugged landscapes that include rocky coastlines, sandy beaches, ...
,
New Brunswick New Brunswick (french: Nouveau-Brunswick, , locally ) is one of the thirteen provinces and territories of Canada. It is one of the three Maritime provinces and one of the four Atlantic provinces. It is the only province with both English and ...
and
Prince Edward Island Prince Edward Island (PEI; ) is one of the thirteen Provinces and territories of Canada, provinces and territories of Canada. It is the smallest province in terms of land area and population, but the most densely populated. The island has seve ...
, although all did elect some third-party members in their most recent provincial elections. The
Commonwealth Caribbean The Commonwealth Caribbean is the region of the Caribbean with English-speaking countries and territories, which once constituted the Caribbean portion of the British Empire and are now part of the Commonwealth of Nations. The term includes ma ...
while inheriting their basic political system from
Great Britain Great Britain is an island in the North Atlantic Ocean off the northwest coast of continental Europe. With an area of , it is the largest of the British Isles, the largest European island and the ninth-largest island in the world. It is ...
have become two-party systems. The
politics of Jamaica Politics in Jamaica takes place in the framework of a representative parliamentary democratic constitutional monarchy. The 1962 Constitution of Jamaica established a parliamentary system whose political and legal traditions closely fol ...
are between the
People's National Party The People's National Party (PNP) is a Social democracy, social-democratic List of political parties in Jamaica, political party in Jamaica, founded in 1938 by independence campaigner Osmond Theodore Fairclough. It holds 14 of the 63 seats in ...
and the
Jamaica Labour Party The Jamaica Labour Party (JLP) is one of the two major political parties in Jamaica, the other being the People's National Party (PNP). While its name might suggest that it is a social democratic party (as is the case for "Labour" parties in seve ...
. The
politics of Guyana The politics of Guyana takes place in a framework of a representative democratic assembly-independent republic, whereby the President of Guyana is the head of government and of a multi-party system. Executive power is exercised by the President ...
are between the People's Progressive Party and APNU which is actually a coalition of smaller parties. The
politics of Trinidad and Tobago The politics of Trinidad and Tobago function within the framework of a unitary state regulated by a parliamentary democracy modelled on that of the United Kingdom of Great Britain and Northern Ireland, from which the country gained its independenc ...
are between the
People's National Movement The People's National Movement (PNM) is the longest-serving and oldest active political party in Trinidad and Tobago. The party has dominated national and local politics for much of Trinidad and Tobago's history, contesting all elections sinc ...
and the
United National Congress The United National Congress ( UNC or UNCTT) is one of two major political parties in Trinidad and Tobago and the current parliamentary opposition. The UNC is a centre-left party. It was founded in 1989 by Basdeo Panday, a Trinidadian lawyer, e ...
. The
Politics of Belize Politics of Belize takes place in a framework of a parliamentary representative democratic monarchy, whereby King Charles III serves as head of state and the prime minister is the head of government, and of a multi-party system. Executive power i ...
are between the United Democratic Party and the
People's United Party The People's United Party (PUP) is one of two major political parties in Belize. It is currently the governing party of Belize after success in the 2020 Belizean general election, winning a majority of 26 seats out of 31 in the Belizean House ...
. The
Politics of the Bahamas The Bahamas is a parliamentary constitutional monarchy headed by King Charles III in his role as King of the Bahamas. The politics of the Bahamas takes place within a framework of parliamentary democracy, with a Prime Minister as the Head of Gover ...
are between the
Progressive Liberal Party The Progressive Liberal Party (abbreviated PLP) is a populist and social liberal party in the Bahamas. Philip Davis is the leader of the party. History The PLP was founded in 1953 by William Cartwright, Cyril Stevenson, and Henry Milton Tay ...
and the
Free National Movement The Free National Movement (abbreviated FNM) is a political party in The Bahamas formed in the early 1970s, led by Sir Cecil Wallace Whitfield. The current leader of the party is Michael Pintard and his deputy Peter Turnquest. It dominated the ...
. The
politics of Barbados The politics of Barbados function within a framework of a parliamentary republic with strong democratic traditions; constitutional safeguards for nationals of Barbados include: freedom of speech, press, worship, movement, and association. Execut ...
are between the Democratic Labour Party and the
Barbados Labour Party The Barbados Labour Party (BLP), colloquially known as the "Bees", is a social democratic political party in Barbados established in 1938. Led by Prime Minister Mia Amor Mottley, it is the governing party of Barbados and the sole ruling party i ...
. The
politics of Zimbabwe The politics of Zimbabwe takes place in a framework of a full presidential republic, whereby the President is the head of state and government as organized by the 2013 Constitution. Executive power is exercised by the government. Legislative pow ...
are effectively a two-party system between the
Robert Mugabe Robert Gabriel Mugabe (; ; 21 February 1924 – 6 September 2019) was a Zimbabwean revolutionary and politician who served as Prime Minister of Zimbabwe from 1980 to 1987 and then as President from 1987 to 2017. He served as Leader of the ...
founded
Zimbabwe African National Union-Patriotic Front Zimbabwe (), officially the Republic of Zimbabwe, is a landlocked country located in Southeast Africa, between the Zambezi and Limpopo Rivers, bordered by South Africa to the south, Botswana to the south-west, Zambia to the north, and Moza ...
and the opposition coalition
Movement for Democratic Change Movement for Democratic Change or MDC may refer to: * Movement for Democratic Change – Tsvangirai (MDC–T), the former main opposition party in Zimbabwe ** Movement for Democratic Change – Tsvangirai Congress 2006, the second MDC–T congress ...
.


United States

The
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territorie ...
has two dominant political parties; historically, there have been few instances in which third party candidates won an election. In the
First Party System The First Party System is a model of American politics used in history and political science to periodize the political party system that existed in the United States between roughly 1792 and 1824. It featured two national parties competing for ...
, only
Alexander Hamilton Alexander Hamilton (January 11, 1755 or 1757July 12, 1804) was an American military officer, statesman, and Founding Father who served as the first United States secretary of the treasury from 1789 to 1795. Born out of wedlock in Charlest ...
's
Federalist Party The Federalist Party was a Conservatism in the United States, conservative political party which was the first political party in the United States. As such, under Alexander Hamilton, it dominated the national government from 1789 to 1801. De ...
and
Thomas Jefferson Thomas Jefferson (April 13, 1743 – July 4, 1826) was an American statesman, diplomat, lawyer, architect, philosopher, and Founding Fathers of the United States, Founding Father who served as the third president of the United States from 18 ...
's
Democratic-Republican Party The Democratic-Republican Party, known at the time as the Republican Party and also referred to as the Jeffersonian Republican Party among other names, was an American political party founded by Thomas Jefferson and James Madison in the early ...
were significant political parties. Toward the end of the First Party System, the Democratic-Republicans were dominant (primarily under the Presidency of
James Monroe James Monroe ( ; April 28, 1758July 4, 1831) was an American statesman, lawyer, diplomat, and Founding Father who served as the fifth president of the United States from 1817 to 1825. A member of the Democratic-Republican Party, Monroe was ...
). Under the
Second Party System Historians and political scientists use Second Party System to periodize the political party system operating in the United States from about 1828 to 1852, after the First Party System ended. The system was characterized by rapidly rising levels ...
, the Democratic-Republican Party split during the
1824 United States presidential election The 1824 United States presidential election was the tenth quadrennial presidential election. It was held from Tuesday, October 26 to Thursday, December 2, 1824. Andrew Jackson, John Quincy Adams, Henry Clay and William Crawford were the primary ...
into Adams' Men and Jackson's Men. In the 1828 presidential election, the modern
Democratic Party Democratic Party most often refers to: *Democratic Party (United States) Democratic Party and similar terms may also refer to: Active parties Africa *Botswana Democratic Party *Democratic Party of Equatorial Guinea *Gabonese Democratic Party *Demo ...
formed in support of
Andrew Jackson Andrew Jackson (March 15, 1767 – June 8, 1845) was an American lawyer, planter, general, and statesman who served as the seventh president of the United States from 1829 to 1837. Before being elected to the presidency, he gained fame as ...
. The
National Republicans The National Republican Party, also known as the Anti-Jacksonian Party or simply Republicans, was a political party in the United States that evolved from a conservative-leaning faction of the Democratic-Republican Party that supported John Q ...
were formed in support of
John Quincy Adams John Quincy Adams (; July 11, 1767 – February 23, 1848) was an American statesman, diplomat, lawyer, and diarist who served as the sixth president of the United States, from 1825 to 1829. He previously served as the eighth United States S ...
. After the National Republicans collapsed, the Whig Party and the
Free Soil Party The Free Soil Party was a short-lived coalition political party in the United States active from 1848 to 1854, when it merged into the Republican Party. The party was largely focused on the single issue of opposing the expansion of slavery into ...
quickly formed and collapsed. In 1854 began the
Third Party System In the terminology of historians and political scientists, the Third Party System was a period in the history of political parties in the United States from the 1850s until the 1890s, which featured profound developments in issues of American na ...
when the modern Republican Party formed from a loose coalition of former Whigs, Free Soilers and other anti-slavery activists. The Republicans quickly became the dominant party nationally, and
Abraham Lincoln Abraham Lincoln ( ; February 12, 1809 – April 15, 1865) was an American lawyer, politician, and statesman who served as the 16th president of the United States from 1861 until his assassination in 1865. Lincoln led the nation thro ...
became the first Republican President in the 1860 presidential election. The Democrats held a strong, loyal coalition in the
Solid South The Solid South or Southern bloc was the electoral voting bloc of the states of the Southern United States for issues that were regarded as particularly important to the interests of Democrats in those states. The Southern bloc existed especial ...
. This period saw the
American Civil War The American Civil War (April 12, 1861 – May 26, 1865; also known by other names) was a civil war in the United States. It was fought between the Union ("the North") and the Confederacy ("the South"), the latter formed by states th ...
where the South (which was mostly dominated by the
Southern Democrats Southern Democrats, historically sometimes known colloquially as Dixiecrats, are members of the U.S. History of the Democratic Party (United States), Democratic Party who reside in the Southern United States. Southern Democrats were generally mu ...
) attempted to secede as the
Confederate States of America The Confederate States of America (CSA), commonly referred to as the Confederate States or the Confederacy was an unrecognized breakaway republic in the Southern United States that existed from February 8, 1861, to May 9, 1865. The Confeder ...
, in an attempt to preserve racial slavery. The South lost the war and were forced to end slavery, and during the following
Reconstruction Era The Reconstruction era was a period in American history following the American Civil War (1861–1865) and lasting until approximately the Compromise of 1877. During Reconstruction, attempts were made to rebuild the country after the bloo ...
the Republicans remained the most popular party nationally while the Democrats remained dominant in the South. During the
Fourth Party System The Fourth Party System is the term used in political science and history for the period in American political history from about 1896 to 1932 that was dominated by the Republican Party, except the 1912 split in which Democrats captured the Whit ...
from about 1896 to 1932, the Republicans remained the dominant Presidential party, although Democrats
Grover Cleveland Stephen Grover Cleveland (March 18, 1837June 24, 1908) was an American lawyer and politician who served as the 22nd and 24th president of the United States from 1885 to 1889 and from 1893 to 1897. Cleveland is the only president in American ...
and
Woodrow Wilson Thomas Woodrow Wilson (December 28, 1856February 3, 1924) was an American politician and academic who served as the 28th president of the United States from 1913 to 1921. A member of the Democratic Party, Wilson served as the president of ...
were both elected to two terms. The 1932 United States elections saw the onset of the
Fifth Party System The Fifth Party System is the era of American national politics that began with the New Deal in 1932 under President Franklin D. Roosevelt. This era of Democratic Party-dominance emerged from the realignment of the voting blocs and interest gro ...
and a long period of Democratic dominance due to the New Deal Coalition. Democrat President
Franklin D. Roosevelt Franklin Delano Roosevelt (; ; January 30, 1882April 12, 1945), often referred to by his initials FDR, was an American politician and attorney who served as the 32nd president of the United States from 1933 until his death in 1945. As the ...
won landslides in four consecutive elections. Other than the two terms of Republican
Dwight Eisenhower Dwight David "Ike" Eisenhower (born David Dwight Eisenhower; ; October 14, 1890 – March 28, 1969) was an American military officer and statesman who served as the 34th president of the United States from 1953 to 1961. During World War II, ...
from 1953 to 1961, Democrats retained firm control of the Presidency until the mid-1960s. In Congress, Democrats retained majorities in both houses for 60 years until the
Republican Revolution The "Republican Revolution", "Revolution of '94", or "Gingrich Revolution" are political slogans that refer to the Republican Party (GOP) success in the 1994 U.S. mid-term elections, which resulted in a net gain of 54 seats in the House of ...
, broken only by brief Republican majorities. There was a significant change in U.S. politics in 1960, and this is seen by some as a transition to a
sixth party system The Sixth Party System is the era in United States politics following the Fifth Party System. As with any periodization, opinions differ on when the Sixth Party System may have begun, with suggested dates ranging from the late 1960s to the Repub ...
. Since the mid-1960s, despite a couple of landslides (such as
Richard Nixon Richard Milhous Nixon (January 9, 1913April 22, 1994) was the 37th president of the United States, serving from 1969 to 1974. A member of the Republican Party, he previously served as a representative and senator from California and was ...
carrying 49 states and 61% of the popular vote over
George McGovern George Stanley McGovern (July 19, 1922 – October 21, 2012) was an American historian and South Dakota politician who was a U.S. representative and three-term U.S. senator, and the Democratic Party presidential nominee in the 1972 pres ...
in
1972 Within the context of Coordinated Universal Time (UTC) it was the longest year ever, as two leap seconds were added during this 366-day year, an event which has not since been repeated. (If its start and end are defined using Solar time, me ...
;
Ronald Reagan Ronald Wilson Reagan ( ; February 6, 1911June 5, 2004) was an American politician, actor, and union leader who served as the 40th president of the United States from 1981 to 1989. He also served as the 33rd governor of California from 1967 ...
carrying 49 states and 58% of the popular vote over
Walter Mondale Walter Frederick "Fritz" Mondale (January 5, 1928 – April 19, 2021) was an American lawyer and politician who served as the 42nd vice president of the United States from 1977 to 1981 under President Jimmy Carter. A U.S. senator from Minnesota ...
in
1984 Events January * January 1 – The Bornean Sultanate of Brunei gains full independence from the United Kingdom, having become a British protectorate in 1888. * January 7 – Brunei becomes the sixth member of the Association of Southeast A ...
), Presidential elections have been competitive between the predominant Republican and Democratic parties and no one party has been able to hold the Presidency for more than three consecutive terms. In the
2012 United States presidential election The 2012 United States presidential election was the 57th quadrennial presidential election, held on Tuesday, November 6, 2012. Incumbent Democratic President Barack Obama and his running mate, incumbent Vice President Joe Biden, were re-el ...
, only 4% separated the popular vote between
Barack Obama Barack Hussein Obama II ( ; born August 4, 1961) is an American politician who served as the 44th president of the United States from 2009 to 2017. A member of the Democratic Party, Obama was the first African-American president of the U ...
(51%) and
Mitt Romney Willard Mitt Romney (born March 12, 1947) is an American politician, businessman, and lawyer serving as the junior United States senator from Utah since January 2019, succeeding Orrin Hatch. He served as the 70th governor of Massachusetts f ...
(47%), although Obama won the electoral vote (332–206). Throughout every American party system, no third party has won a Presidential election or majorities in either house of Congress. Despite that, third parties and third party candidates have gained traction and support. In the election of
1912 Events January * January 1 – The Republic of China (1912–49), Republic of China is established. * January 5 – The Prague Conference (6th All-Russian Conference of the Russian Social Democratic Labour Party) opens. * January 6 ...
,
Theodore Roosevelt Theodore Roosevelt Jr. ( ; October 27, 1858 – January 6, 1919), often referred to as Teddy or by his initials, T. R., was an American politician, statesman, soldier, conservationist, naturalist, historian, and writer who served as the 26t ...
won 27% of the popular vote and 88 electoral votes running as a Progressive. In the 1992 Presidential election,
Ross Perot Henry Ross Perot (; June 27, 1930 – July 9, 2019) was an American business magnate, billionaire, politician and philanthropist. He was the founder and chief executive officer of Electronic Data Systems and Perot Systems. He ran an inde ...
won 19% of the popular vote but no electoral votes running as an Independent. Modern
American politics The politics of the United States function within a framework of a constitutional federal republic and presidential system, with three distinct branches that Separation of powers, share powers. These are: the United States Congress, U.S. Congre ...
, in particular the electoral college system, has been described as duopolistic since the Republican and Democratic parties have dominated and framed
policy Policy is a deliberate system of guidelines to guide decisions and achieve rational outcomes. A policy is a statement of intent and is implemented as a procedure or protocol. Policies are generally adopted by a governance body within an organ ...
debate as well as the public discourse on matters of national concern for about a century and a half. Third Parties have encountered various blocks in getting onto ballots at different levels of government as well as other electoral obstacles, such as denial of access to general election debates. Since 1987, the
Commission on Presidential Debates The Commission on Presidential Debates (CPD) is a nonprofit corporation established in 1987 under the joint sponsorship of the Democratic and Republican political parties in the United States. The CPD sponsors and produces debates for U.S. pre ...
, established by the Republican and Democratic parties themselves, supplanted debates run since 1920 by the
League of Women Voters The League of Women Voters (LWV or the League) is a nonprofit, nonpartisan political organization in the United States. Founded in 1920, its ongoing major activities include registering voters, providing voter information, and advocating for vot ...
. The League withdrew its support in protest in 1988 over objections of alleged stagecraft such as rules for camera placement, filling the audience with supporters, approved moderators, predetermined question selection, room temperature and others. The Commission maintains its own rules for admittance and has only admitted a single third-party candidate to a televised debate,
Ross Perot Henry Ross Perot (; June 27, 1930 – July 9, 2019) was an American business magnate, billionaire, politician and philanthropist. He was the founder and chief executive officer of Electronic Data Systems and Perot Systems. He ran an inde ...
, in
1992 File:1992 Events Collage V1.png, From left, clockwise: 1992 Los Angeles riots, Riots break out across Los Angeles, California after the Police brutality, police beating of Rodney King; El Al Flight 1862 crashes into a residential apartment buildi ...
. Some parts of the US have had their own party systems, distinct from the rest of the country. * In
Puerto Rico Puerto Rico (; abbreviated PR; tnq, Boriken, ''Borinquen''), officially the Commonwealth of Puerto Rico ( es, link=yes, Estado Libre Asociado de Puerto Rico, lit=Free Associated State of Puerto Rico), is a Caribbean island and Unincorporated ...
, there is a
multi-party system In political science, a multi-party system is a political system in which multiple political parties across the political spectrum run for national elections, and all have the capacity to gain control of government offices, separately or in coal ...
with the Popular Democratic Party and New Progressive Party being the two strongest parties. Minor parties in the 2021 legislature include the
Puerto Rican Independence Party The Puerto Rican Independence Party ( es, Partido Independentista Puertorriqueño, PIP) is a social-democratic political party in Puerto Rico that campaigns for the independence of Puerto Rico from the United States. Those who follow the PIP ...
,
Citizens' Victory Movement Movimiento Victoria Ciudadana ( en, Citizens' Victory Movement, generally abbreviated as MVC) is a Puerto Rican political party founded in 2019. It ran in the 2020 general elections on an anti-colonial platform, proposing a constitutional asse ...
and
Project Dignity Proyecto Dignidad (, PD) is a Puerto Rican political party founded in 2019. In the 2020 general election it ran on a Christian democracy and anti-corruption platform. History Project Dignity was first announced on March 24, 2019. On January ...
. * In
Guam Guam (; ch, Guåhan ) is an organized, unincorporated territory of the United States in the Micronesia subregion of the western Pacific Ocean. It is the westernmost point and territory of the United States (reckoned from the geographic cent ...
, the Popular Party was the only political party from 1949-1954, and was dominant until 1967 when they became affiliated with the Democrats. Since then, the Democrats and Republicans have been the two main parties. * In the
Northern Mariana Islands The Northern Mariana Islands, officially the Commonwealth of the Northern Mariana Islands (CNMI; ch, Sankattan Siha Na Islas Mariånas; cal, Commonwealth Téél Falúw kka Efáng llól Marianas), is an unincorporated territory and commonw ...
, the Democrats and Republicans are the two main parties but as recently as 2013, the Governor was a member of the Covenant Party. * In
American Samoa American Samoa ( sm, Amerika Sāmoa, ; also ' or ') is an unincorporated territory of the United States located in the South Pacific Ocean, southeast of the island country of Samoa. Its location is centered on . It is east of the International ...
, the
American Samoa Fono The American Samoa Fono is the territorial legislature of American Samoa. Like most states and territorial legislatures of the United States, it is a bicameral legislature with a House of Representatives and a Senate. The legislature is locate ...
(territorial legislature) is non-partisan, and on ballots only candidate names are displayed, not political parties. The Governor has typically been either Democrat or Republican. * In the
US Virgin Islands The United States Virgin Islands,. Also called the ''American Virgin Islands'' and the ''U.S. Virgin Islands''. officially the Virgin Islands of the United States, are a group of Caribbean islands and an unincorporated and organized territory ...
, the Democrats and Republicans have been the main two parties, but two Governors during the 1970s were part of the
Independent Citizens Movement The Independent Citizens Movement (or Independent Citizens' Movement) is a political party in the U.S. Virgin Islands that was founded by Virdin C. Brown and Steve O'Reilly in 1968. Its symbol is the torch. The party advocates for grassroots p ...
, and from 2015-2019 the Governor was an independent.


Australia


House of Representatives

Since the 1920s, the
Australian House of Representatives The House of Representatives is the lower house of the bicameral Parliament of Australia, the upper house being the Senate. Its composition and powers are established in Chapter I of the Constitution of Australia. The term of members of the ...
(and thus the
federal government A federation (also known as a federal state) is a political entity characterized by a union of partially self-governing provinces, states, or other regions under a central federal government (federalism). In a federation, the self-governin ...
) has in effect been a two-party system. Since the end of
World War II World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposin ...
, Australia's House of Representatives has been dominated by two factions: * the centre-left Labor Party * the centre-right
Coalition A coalition is a group formed when two or more people or groups temporarily work together to achieve a common goal. The term is most frequently used to denote a formation of power in political or economical spaces. Formation According to ''A Gui ...
. The Coalition has been in government about two-thirds of time, broken by four periods of Labor governments: 1972–1975, 1983–1996, 2007–2013 and 2022–present. The ALP is Australia's largest and oldest continuing political party, it was formed in 1891 from the
Australian labour movement The Australian labour movement began in the early 19th century and since the late 19th century has included industrial (Australian unions) and political wings (Australian Labor Party). Trade unions in Australia may be organised (i.e., formed) o ...
. The party has branches in every state and territory. The Coalition is a near-permanent alliance of several parties, primarily the
Liberal Party of Australia The Liberal Party of Australia is a centre-right political party in Australia, one of the two major parties in Australian politics, along with the centre-left Australian Labor Party. It was founded in 1944 as the successor to the United Au ...
(Australia's 2nd largest party) and
National Party of Australia The National Party of Australia, also known as The Nationals or The Nats, is an List of political parties in Australia, Australian political party. Traditionally representing graziers, farmers, and regional voters generally, it began as the Au ...
(4th largest). It was formed after the
1922 Australian federal election The 1922 Australian federal election was held in Australia on 16 December 1922. All 75 seats in the House of Representatives, and 19 of the 36 seats in the Senate were up for election. The incumbent Nationalist Party, led by Prime Minister Billy ...
, when the Nationalist Party (ancestor of today's Liberal Party) lost its absolute majority, and was only able to remain in government by allying with the Country Party (now called the National Party). Under the Coalition agreement, if the Coalition forms government then the
Prime Minister A prime minister, premier or chief of cabinet is the head of the cabinet and the leader of the ministers in the executive branch of government, often in a parliamentary or semi-presidential system. Under those systems, a prime minister is not ...
will be the leader of the Liberals, and the
Deputy Prime Minister A deputy prime minister or vice prime minister is, in some countries, a government minister who can take the position of acting prime minister when the prime minister is temporarily absent. The position is often likened to that of a vice president, ...
will be the leader of the Nationals. In theory, disagreements between the Coalition's constituent parties would lead to the Coalition being broken. However, the last time that this has happened at the federal level was in 1939-1940. One reason for Australia's two-party system is because the House of Representatives (which chooses the
Prime Minister of Australia The prime minister of Australia is the head of government of the Commonwealth of Australia. The prime minister heads the executive branch of the Australian Government, federal government of Australia and is also accountable to Parliament of A ...
) is elected through the
instant-runoff voting Instant-runoff voting (IRV) is a type of ranked preferential voting method. It uses a majority voting rule in single-winner elections where there are more than two candidates. It is commonly referred to as ranked-choice voting (RCV) in the Un ...
electoral system. Although voters can preference third parties and independents above the major parties, and this does not lead to a spoiler effect, there is still only one member per electoral division (ie: a winner-take-all system) and so major parties tend to win the vast majority of seats (even if they need to rely on preferences to do so - for example, a Labor candidate may win a seat with 30% of the vote for Labor and 21% from
Australian Greens The Australian Greens, commonly known as The Greens, are a confederation of Green state and territory political parties in Australia. As of the 2022 federal election, the Greens are the third largest political party in Australia by vote and th ...
voters who ranked Labor second).


Senate

On the other hand, the
Australian Senate The Senate is the upper house of the Bicameralism, bicameral Parliament of Australia, the lower house being the House of Representatives (Australia), House of Representatives. The composition and powers of the Senate are established in Chapter ...
is effectively a multi-party system. It uses
single transferable vote Single transferable vote (STV) is a multi-winner electoral system in which voters cast a single vote in the form of a ranked-choice ballot. Voters have the option to rank candidates, and their vote may be transferred according to alternate p ...
with multiple Senators for each state/territory. This results in rough
proportional representation Proportional representation (PR) refers to a type of electoral system under which subgroups of an electorate are reflected proportionately in the elected body. The concept applies mainly to geographical (e.g. states, regions) and political divis ...
and as a result, third parties have much more influence and often hold the balance of power. Since 2004, the
Australian Greens The Australian Greens, commonly known as The Greens, are a confederation of Green state and territory political parties in Australia. As of the 2022 federal election, the Greens are the third largest political party in Australia by vote and th ...
have been the third largest party in the country, with 8-13% of the national vote and an equivalent amount of Senators. Prior to this, the
Australian Democrats The Australian Democrats is a centrist political party in Australia. Founded in 1977 from a merger of the Australia Party and the New Liberal Movement, both of which were descended from Liberal Party dissenting splinter groups, it was Australia ...
was the third largest party. Other current and past parties include One Nation, the Liberal Democrats and Family First.


States

Some Australian States have seen the rise of minor parties at either the state or federal level (eg:
Centre Alliance Centre Alliance, formerly known as the Nick Xenophon Team (NXT), is a centrist political party in Australia based in the state of South Australia. It currently has one representative in the Parliament, Rebekha Sharkie in the House of Represent ...
in
South Australia South Australia (commonly abbreviated as SA) is a state in the southern central part of Australia. It covers some of the most arid parts of the country. With a total land area of , it is the fourth-largest of Australia's states and territories ...
,
Katter's Australian Party Katter's Australian Party (KAP) is an agrarian political party in Australia. It was founded by Bob Katter, an independent and former Nationals MP for the seat of Kennedy, with a registration application lodged to the Australian Electoral Co ...
in northern
Queensland ) , nickname = Sunshine State , image_map = Queensland in Australia.svg , map_caption = Location of Queensland in Australia , subdivision_type = Country , subdivision_name = Australia , established_title = Before federation , established_ ...
, and the
Shooters, Fishers and Farmers Party The Shooters, Fishers and Farmers Party (SFF) is an Australian political party. It primarily advocates for increased funding and services for rural and regional Australia, protecting the right to farm, enhancing commercial and recreational fishi ...
in western New South Wales), while some have seen long periods of dominance by one party. Some parties are absent entirely in parts of the country. * The
Australian Capital Territory The Australian Capital Territory (commonly abbreviated as ACT), known as the Federal Capital Territory (FCT) until 1938, is a landlocked federal territory of Australia containing the national capital Canberra and some surrounding townships. ...
has had a
Labor Labour or labor may refer to: * Childbirth, the delivery of a baby * Labour (human activity), or work ** Manual labour, physical work ** Wage labour, a socioeconomic relationship between a worker and an employer ** Organized labour and the labour ...
/ Greens coalition government since 2012, opposed by the Liberals (Nationals not present). Labor was in government alone from 2001–2012. ** Notably, the ACT is the only state/territory where the Greens have been in power. * In the
Northern Territory The Northern Territory (commonly abbreviated as NT; formally the Northern Territory of Australia) is an states and territories of Australia, Australian territory in the central and central northern regions of Australia. The Northern Territory ...
, the two main parties are
Labor Labour or labor may refer to: * Childbirth, the delivery of a baby * Labour (human activity), or work ** Manual labour, physical work ** Wage labour, a socioeconomic relationship between a worker and an employer ** Organized labour and the labour ...
and the
Country Liberal Party The Country Liberal Party of the Northern Territory (CLP) is a centre-right political party in Australia's Northern Territory. In local politics it operates in a two-party system with the Australian Labor Party (ALP). It also contests federal ...
(CLP), which aligns with the Coalition at the federal level. * In
Western Australia Western Australia (commonly abbreviated as WA) is a state of Australia occupying the western percent of the land area of Australia excluding external territories. It is bounded by the Indian Ocean to the north and west, the Southern Ocean to th ...
, the
Liberal Liberal or liberalism may refer to: Politics * a supporter of liberalism ** Liberalism by country * an adherent of a Liberal Party * Liberalism (international relations) * Sexually liberal feminism * Social liberalism Arts, entertainment and m ...
and National parties are not in a permanent coalition. At the
2021 Western Australian state election 1 (one, unit, unity) is a number representing a single or the only entity. 1 is also a numerical digit and represents a single unit of counting or measurement. For example, a line segment of ''unit length'' is a line segment of length 1 ...
,
Labor Labour or labor may refer to: * Childbirth, the delivery of a baby * Labour (human activity), or work ** Manual labour, physical work ** Wage labour, a socioeconomic relationship between a worker and an employer ** Organized labour and the labour ...
won 53 out of 59 lower house seats in a landslide victory. The National Party won 4 seats making them the official opposition. The Liberals won only 2 seats, putting them on the
crossbench A crossbencher is an independent or minor party member of some legislatures, such as the British House of Lords and the Parliament of Australia. They take their name from the crossbenches, between and perpendicular to the government and oppositi ...
. * In
New South Wales ) , nickname = , image_map = New South Wales in Australia.svg , map_caption = Location of New South Wales in AustraliaCoordinates: , subdivision_type = Country , subdivision_name = Australia , established_title = Before federation , es ...
and
Victoria Victoria most commonly refers to: * Victoria (Australia), a state of the Commonwealth of Australia * Victoria, British Columbia, provincial capital of British Columbia, Canada * Victoria (mythology), Roman goddess of Victory * Victoria, Seychelle ...
, the main parties reflect the situation nationally: Labor versus the Coalition of the Liberals and Nationals. NSW is the only state where the Coalition has never split, but has also never merged into one party. * In
South Australia South Australia (commonly abbreviated as SA) is a state in the southern central part of Australia. It covers some of the most arid parts of the country. With a total land area of , it is the fourth-largest of Australia's states and territories ...
and
Tasmania ) , nickname = , image_map = Tasmania in Australia.svg , map_caption = Location of Tasmania in AustraliaCoordinates: , subdivision_type = Country , subdi ...
, the main parties are Labor and the Liberals, with the Nationals not holding any seats. * In
Queensland ) , nickname = Sunshine State , image_map = Queensland in Australia.svg , map_caption = Location of Queensland in Australia , subdivision_type = Country , subdivision_name = Australia , established_title = Before federation , established_ ...
, the main parties are
Labor Labour or labor may refer to: * Childbirth, the delivery of a baby * Labour (human activity), or work ** Manual labour, physical work ** Wage labour, a socioeconomic relationship between a worker and an employer ** Organized labour and the labour ...
and the Liberal-National Party (LNP). Historically, the Country Party was the largest Coalition member and they governed the state from 1957 until 1989. This was partially due to a
malapportionment Apportionment is the process by which seats in a legislative body are distributed among administrative divisions, such as states or parties, entitled to representation. This page presents the general principles and issues related to apportionmen ...
which heavily favoured rural seats. It had been originally designed by a Labor government, but ended up benefitting the Country Party as demographics shifted. Later, Premier
Joh Bjelke-Petersen Sir Johannes Bjelke-Petersen (13 January 191123 April 2005), known as Joh Bjelke-Petersen, was a conservative Australian politician. He was the longest-serving and longest-lived premier of Queensland, holding office from 1968 to 1987, during ...
increased his power by using
Queensland Police The Queensland Police Service (QPS) is the principal law enforcement agency responsible for policing the Australian state of Queensland. In 1990, the Queensland Police Force was officially renamed the Queensland Police Service and the old motto ...
to suppress political dissent, and enacted the
Bjelkemander The Bjelkemander was the term given to a system of malapportionment in the Australian state of Queensland in the 1970s and 1980s. Under the system, electorates were allocated to zones such as rural or metropolitan and electoral boundaries drawn ...
, worsening malapportionment in order to reduce the power of the Liberals so his Country Party could rule alone. Eventually, media reports and the
Fitzgerald Inquiry The Commission of Inquiry into Possible Illegal Activities and Associated Police Misconduct (the Fitzgerald Inquiry; 1987–1989) into Queensland Police corruption was a judicial inquiry presided over by Tony Fitzgerald QC. The inquiry resulted ...
revealed wide-ranging corruption police and government. Bjelke-Petersen was forced to resign in disgrace, while many high-ranking police and politicians were criminally charged. Labor has been in power for most the time since then, with the state Country and Liberal parties merging into the LNP, which is a member of the Coalition federally.


Latin America

Most Latin American countries also have
presidential systems A presidential system, or single executive system, is a form of government in which a head of government, typically with the title of president, leads an executive branch that is separate from the legislative branch in systems that use separation ...
very similar to the US often with winner takes all systems. Due to the common accumulation of power in the presidential office both the official party and the main opposition became important political protagonists causing historically two-party systems. Some of the first manifestations of this particularity was with the liberals and conservatives that often fought for power in all Latin America causing the first two-party systems in most Latin American countries which often lead to civil wars in places like
Colombia Colombia (, ; ), officially the Republic of Colombia, is a country in South America with insular regions in North America—near Nicaragua's Caribbean coast—as well as in the Pacific Ocean. The Colombian mainland is bordered by the Car ...
,
Ecuador Ecuador ( ; ; Quechua: ''Ikwayur''; Shuar: ''Ecuador'' or ''Ekuatur''), officially the Republic of Ecuador ( es, República del Ecuador, which literally translates as "Republic of the Equator"; Quechua: ''Ikwadur Ripuwlika''; Shuar: ''Eku ...
,
Mexico Mexico (Spanish: México), officially the United Mexican States, is a country in the southern portion of North America. It is bordered to the north by the United States; to the south and west by the Pacific Ocean; to the southeast by Guatema ...
,
Venezuela Venezuela (; ), officially the Bolivarian Republic of Venezuela ( es, link=no, República Bolivariana de Venezuela), is a country on the northern coast of South America, consisting of a continental landmass and many islands and islets in th ...
, the
Central American Republic Central America is commonly said to include Guatemala, Belize, El Salvador, Honduras, Nicaragua, Costa Rica, and Panama. This definition matches modern political borders. Central America begins geographically in Mexico, at the Isthmus of Tehua ...
and
Peru , image_flag = Flag of Peru.svg , image_coat = Escudo nacional del Perú.svg , other_symbol = Great Seal of the State , other_symbol_type = Seal (emblem), National seal , national_motto = "Fi ...
, with fights focusing specially on opposing/defending the privileges of the
Catholic Church The Catholic Church, also known as the Roman Catholic Church, is the largest Christian church, with 1.3 billion baptized Catholics worldwide . It is among the world's oldest and largest international institutions, and has played a ...
and the creole
aristocracy Aristocracy (, ) is a form of government that places strength in the hands of a small, privileged ruling class, the aristocracy (class), aristocrats. The term derives from the el, αριστοκρατία (), meaning 'rule of the best'. At t ...
. Other examples of primitive two-party systems included the
Pelucones 180px, Mariano Egaña, was a notable Pelucón; politically he felt affinity to constitutional monarchy as a form of government. Pelucones (spanish language, Spanish for bigwigs) was the name used to refer to Chilean aristocracy, aristocratic c ...
versus
Pipiolos 180px, Ramón Freire, hero of the Chilean War of Independence and head of state between 1823 and 1826 and again in 1827, was an icon of the Pipiolo movement ''Pipiolos'' (spanish language, Spanish for a young or naive person) was a name used t ...
in
Chile Chile, officially the Republic of Chile, is a country in the western part of South America. It is the southernmost country in the world, and the closest to Antarctica, occupying a long and narrow strip of land between the Andes to the east a ...
,
Federalists The term ''federalist'' describes several political beliefs around the world. It may also refer to the concept of parties, whose members or supporters called themselves ''Federalists''. History Europe federation In Europe, proponents of de ...
versus Unitarians in
Argentina Argentina (), officially the Argentine Republic ( es, link=no, República Argentina), is a country in the southern half of South America. Argentina covers an area of , making it the second-largest country in South America after Brazil, th ...
, Colorados versus Liberals in
Paraguay Paraguay (; ), officially the Republic of Paraguay ( es, República del Paraguay, links=no; gn, Tavakuairetã Paraguái, links=si), is a landlocked country in South America. It is bordered by Argentina to the south and southwest, Brazil to th ...
and Colorados versus Nationals in
Uruguay Uruguay (; ), officially the Oriental Republic of Uruguay ( es, República Oriental del Uruguay), is a country in South America. It shares borders with Argentina to its west and southwest and Brazil to its north and northeast; while bordering ...
. However, as in other regions, the original rivalry between liberals and conservatives was overtaken by a rivalry between
center-left Centre-left politics lean to the left on the left–right political spectrum but are closer to the centre than other left-wing politics. Those on the centre-left believe in working within the established systems to improve social justice. The c ...
(often
social-democratic Social democracy is a Political philosophy, political, Social philosophy, social, and economic philosophy within socialism that supports Democracy, political and economic democracy. As a policy regime, it is described by academics as advocati ...
) parties versus
center-right Centre-right politics lean to the right of the political spectrum, but are closer to the centre. From the 1780s to the 1880s, there was a shift in the Western world of social class structure and the economy, moving away from the nobility and mer ...
liberal conservative Liberal conservatism is a political ideology combining conservative policies with liberal stances, especially on economic issues but also on social and ethical matters, representing a brand of political conservatism strongly influenced by li ...
parties, focusing more in economic differences than in cultural and religious differences as it was common during the liberal versus conservative period. Examples of this include National Liberation Party versus
Social Christian Unity Party The Social Christian Unity Party ( es, Partido Unidad Social Cristiana) is a centre-right political party in Costa Rica. PUSC considers itself a Christian-democratic party and, as such, is a member of the Christian Democrat Organization of Americ ...
in
Costa Rica Costa Rica (, ; ; literally "Rich Coast"), officially the Republic of Costa Rica ( es, República de Costa Rica), is a country in the Central American region of North America, bordered by Nicaragua to the north, the Caribbean Sea to the no ...
, the
peronista Peronism, also called justicialism,. The Justicialist Party is the main Peronist party in Argentina, it derives its name from the concept of social justice., name=, group= is an Argentine political movement based on the ideas and legacy of ...
Justicialist Party The Justicialist Party ( es, Partido Justicialista, ; abbr. PJ) is a major political party in Argentina, and the largest branch within Peronism. Current president Alberto Fernández belongs to the Justicialist Party (and has, since 2021, served ...
versus
Radical Civic Union The Radical Civic Union ( es, Unión Cívica Radical, UCR) is a centrist and social-liberal political party in Argentina. It has been ideologically heterogeneous, ranging from social liberalism to social democracy. The UCR is a member of the So ...
in
Argentina Argentina (), officially the Argentine Republic ( es, link=no, República Argentina), is a country in the southern half of South America. Argentina covers an area of , making it the second-largest country in South America after Brazil, th ...
, Democratic Action versus COPEI in
Venezuela Venezuela (; ), officially the Bolivarian Republic of Venezuela ( es, link=no, República Bolivariana de Venezuela), is a country on the northern coast of South America, consisting of a continental landmass and many islands and islets in th ...
, the
Colombian Liberal Party The Colombian Liberal Party ( es, Partido Liberal Colombiano; PLC) is a centre to centre-left political party in Colombia. It was founded as a classical liberal party but later developed a more social-democratic tradition, joining the Socialis ...
versus the
Colombian Conservative Party The Colombian Conservative Party ( es, Partido Conservador Colombiano) is a conservative political party in Colombia. The party was formally established in 1849 by Mariano Ospina Rodríguez and José Eusebio Caro. The Conservative party along ...
in Colombia,
Democratic Revolutionary Party The Democratic Revolutionary Party ( es, Partido Revolucionario Democrático, PRD) is a political party in Panama founded in 1979 by General Omar Torrijos. It is generally described as being positioned on the centre-left. History Since its creat ...
versus
Panameñista Party The Panameñista Party is a nationalist political party in Panama. It was the third largest party by number of adherents with 256,138 members (as of February 2016). Founding and early history The party is the oldest continuously operating pa ...
in
Panama Panama ( , ; es, link=no, Panamá ), officially the Republic of Panama ( es, República de Panamá), is a transcontinental country spanning the southern part of North America and the northern part of South America. It is bordered by Cos ...
and
Liberal Party The Liberal Party is any of many political parties around the world. The meaning of ''liberal'' varies around the world, ranging from liberal conservatism on the right to social liberalism on the left. __TOC__ Active liberal parties This is a li ...
versus National Party in
Honduras Honduras, officially the Republic of Honduras, is a country in Central America. The republic of Honduras is bordered to the west by Guatemala, to the southwest by El Salvador, to the southeast by Nicaragua, to the south by the Pacific Oce ...
. After the democratization of Central America following the end of the
Central American crisis The Central American crisis began in the late 1970s, when major civil wars and communist revolutions erupted in various countries in Central America, causing it to become the world's most volatile region in terms of socioeconomic change. In particu ...
in the 1990s former
far-left Far-left politics, also known as the radical left or the extreme left, are politics further to the left on the left–right political spectrum than the standard political left. The term does not have a single definition. Some scholars consider ...
guerrillas Guerrilla warfare is a form of irregular warfare in which small groups of combatants, such as paramilitary personnel, armed civilians, or irregulars, use military tactics including ambushes, sabotage, raids, petty warfare, hit-and-run tacti ...
and former
right-wing Right-wing politics describes the range of political ideologies that view certain social orders and hierarchies as inevitable, natural, normal, or desirable, typically supporting this position on the basis of natural law, economics, authorit ...
authoritarian parties, now in peace, make some similar two-party systems in countries like
Nicaragua Nicaragua (; ), officially the Republic of Nicaragua (), is the largest country in Central America, bordered by Honduras to the north, the Caribbean to the east, Costa Rica to the south, and the Pacific Ocean to the west. Managua is the cou ...
between the
Sandinista National Liberation Front The Sandinista National Liberation Front ( es, Frente Sandinista de Liberación Nacional, FSLN) is a Socialism, socialist political party in Nicaragua. Its members are called Sandinistas () in both English and Spanish. The party is named after ...
and the Liberals and in
El Salvador El Salvador (; , meaning " The Saviour"), officially the Republic of El Salvador ( es, República de El Salvador), is a country in Central America. It is bordered on the northeast by Honduras, on the northwest by Guatemala, and on the south b ...
between the
Farabundo Martí National Liberation Front The Farabundo Martí National Liberation Front ( es, Frente Farabundo Martí para la Liberación Nacional, FMLN) is a left-wing political party in El Salvador. The FMLN was formed as an umbrella group on 10 October 1980, from five leftist gu ...
and the
Nationalist Republican Alliance The Nationalist Republican Alliance ( es, Alianza Republicana Nacionalista, ARENA) is a conservative, right-wing political party of El Salvador. It was founded on 30 September 1981 by retired Salvadoran Army Major Roberto D'Aubuisson. It defines ...
. The traditional two-party dynamic started to break after a while, especially in early 2000s; alternative parties won elections breaking the traditional two-party systems including
Rafael Caldera Rafael Antonio Caldera Rodríguez ( (); 24 January 1916 – 24 December 2009), twice elected the president of Venezuela, served for two five-year terms (1969–1974 and 1994–1999), becoming the longest serving democratically elected leade ...
's (
National Convergence The National Convergence ( es, Convergencia Nacional) is a political party in Venezuela. It was founded in 1993 by former President of Venezuela Rafael Caldera, who was a member of Copei and won a second term in the 1993 elections. From 19 ...
)
victory The term victory (from Latin ''victoria'') originally applied to warfare, and denotes success achieved in personal Duel, combat, after military operations in general or, by extension, in any competition. Success in a military campaign constitu ...
in
Venezuela Venezuela (; ), officially the Bolivarian Republic of Venezuela ( es, link=no, República Bolivariana de Venezuela), is a country on the northern coast of South America, consisting of a continental landmass and many islands and islets in th ...
in 1993,
Álvaro Uribe Álvaro Uribe Vélez (born 4 July 1952) is a Colombian politician who served as the 31st President of Colombia from 7 August 2002 to 7 August 2010. Uribe started his political career in his home department of Antioquia. He held offices in t ...
( Colombia First)
victory The term victory (from Latin ''victoria'') originally applied to warfare, and denotes success achieved in personal Duel, combat, after military operations in general or, by extension, in any competition. Success in a military campaign constitu ...
in 2002,
Tabaré Vázquez Tabaré Ramón Vázquez Rosas (; ''Vázquez Rosas'' locally ; 17 January 19406 December 2020) was a Uruguayan politician who served as the 41st president of Uruguay from 2015 to 2020. He previously served from 2005 to 2010 as the 39th presiden ...
( Broad Front)
victory The term victory (from Latin ''victoria'') originally applied to warfare, and denotes success achieved in personal Duel, combat, after military operations in general or, by extension, in any competition. Success in a military campaign constitu ...
in
Uruguay Uruguay (; ), officially the Oriental Republic of Uruguay ( es, República Oriental del Uruguay), is a country in South America. It shares borders with Argentina to its west and southwest and Brazil to its north and northeast; while bordering ...
in 2004,
Ricardo Martinelli Ricardo Alberto Martinelli Berrocal (born March 11, 1951) is a Panamanian politician and businessman who was the 36th President of Panama, president of Panama from 2009 to 2014. Early life Born in Panama City, Ricardo Martinelli is the son ...
( Democratic Change)
victory The term victory (from Latin ''victoria'') originally applied to warfare, and denotes success achieved in personal Duel, combat, after military operations in general or, by extension, in any competition. Success in a military campaign constitu ...
in 2009 in
Panama Panama ( , ; es, link=no, Panamá ), officially the Republic of Panama ( es, República de Panamá), is a transcontinental country spanning the southern part of North America and the northern part of South America. It is bordered by Cos ...
,
Luis Guillermo Solís Luis Guillermo Solís Rivera (; born 25 April 1958) is a Costa Rican politician and educator who was the 47th President of Costa Rica from 2014 to 2018. He is a member of the Citizens' Action Party (PAC). Solís led the field in the 2014 pre ...
( Citizens' Action Party )
victory The term victory (from Latin ''victoria'') originally applied to warfare, and denotes success achieved in personal Duel, combat, after military operations in general or, by extension, in any competition. Success in a military campaign constitu ...
in 2014 in
Costa Rica Costa Rica (, ; ; literally "Rich Coast"), officially the Republic of Costa Rica ( es, República de Costa Rica), is a country in the Central American region of North America, bordered by Nicaragua to the north, the Caribbean Sea to the no ...
,
Mauricio Macri Mauricio Macri (; born 8 February 1959) is an Argentine businessman and politician who served as the President of Argentina from 2015 to 2019. He has been the leader of the Republican Proposal (PRO) party since its founding in 2005. He previou ...
(
Republican Proposal Republican Proposal ( es, link=no, Propuesta Republicana) is a centre-right political party in Argentina. It is usually referred to by its abbreviation, PRO. PRO was formed as an electoral alliance in 2005, but was transformed into a national p ...
)
victory The term victory (from Latin ''victoria'') originally applied to warfare, and denotes success achieved in personal Duel, combat, after military operations in general or, by extension, in any competition. Success in a military campaign constitu ...
in 2015 in
Argentina Argentina (), officially the Argentine Republic ( es, link=no, República Argentina), is a country in the southern half of South America. Argentina covers an area of , making it the second-largest country in South America after Brazil, th ...
and
Nayib Bukele Nayib Armando Bukele Ortez (; born 24 July 1981) is a Salvadoran politician and businessman who is the 43rd president of El Salvador, serving since 1 June 2019. He is the first president since José Napoleón Duarte (1984–1989) not to have ...
(
Grand Alliance for National Unity The Grand Alliance for National Unity (GANA; es, Gran Alianza por la Unidad Nacional) is a political party in El Salvador. The party established itself on 16 January 2010 and was recognized by the Supreme Electoral Court of El Salvador on 19 Ma ...
)
victory The term victory (from Latin ''victoria'') originally applied to warfare, and denotes success achieved in personal Duel, combat, after military operations in general or, by extension, in any competition. Success in a military campaign constitu ...
in 2019 in
El Salvador El Salvador (; , meaning " The Saviour"), officially the Republic of El Salvador ( es, República de El Salvador), is a country in Central America. It is bordered on the northeast by Honduras, on the northwest by Guatemala, and on the south b ...
, all of them from non-traditional third parties in their respective countries. In some countries like Argentina, Chile and Venezuela the political system is now split in two large multi-party alliances or blocs, one on the left and one on the right of the spectrum
Frente de Todos The Frente de Todos (translated as "Everyone's Front") is a coalition of Peronist and Kirchnerist political parties in Argentina formed to support President Alberto Fernández and Vice President Cristina Kirchner. Fernández won the 2019 gene ...
versus
Juntos por el Cambio ( en, Together for Change) is a centre-right political coalition in Argentina. It was created in 2015 as Cambiemos ( en, Let's Change), and renamed in 2019. It is composed of Republican Proposal, Radical Civic Union, Civic Coalition ARI and U ...
in Argentina, (
Concertación The Concertación, officially the Concertación de Partidos por la Democracia ( en, Coalition of Parties for Democracy), was a coalition of center-left political parties in Chile, founded in 1988. Presidential candidates under its banner won ...
/ New Majority versus
Alliance An alliance is a relationship among people, groups, or states that have joined together for mutual benefit or to achieve some common purpose, whether or not explicit agreement has been worked out among them. Members of an alliance are called ...
in Chile,
Democratic Unity Roundtable The Democratic Unity Roundtable ( es, Mesa de la Unidad Democrática, MUD) was a catch-all electoral coalition of Venezuelan political parties formed in January 2008 to unify the opposition to President Hugo Chávez's United Socialist Party of ...
versus
Great Patriotic Pole The Simón Bolívar Great Patriotic Pole ( es, Gran Polo Patriótico Simón Bolívar, GPPSB) is a left-wing socialist and chavist electoral alliance/popular front of Venezuelan political parties created in 2012 to support the re-election of Hu ...
in Venezuela).


Malta

Malta Malta ( , , ), officially the Republic of Malta ( mt, Repubblika ta' Malta ), is an island country in the Mediterranean Sea. It consists of an archipelago, between Italy and Libya, and is often considered a part of Southern Europe. It lies ...
is somewhat unusual in that while the electoral system is
single transferable vote Single transferable vote (STV) is a multi-winner electoral system in which voters cast a single vote in the form of a ranked-choice ballot. Voters have the option to rank candidates, and their vote may be transferred according to alternate p ...
(STV), traditionally associated with proportional representation, minor parties have not had much success. Politics is dominated between the centre-left Labour Party and the centre-right Nationalist Party, with no third parties winning seats in Parliament between 1962 and
2017 File:2017 Events Collage V2.png, From top left, clockwise: The War Against ISIS at the Battle of Mosul (2016-2017); aftermath of the Manchester Arena bombing; The Solar eclipse of August 21, 2017 ("Great American Eclipse"); North Korea tests a ser ...
.


South Korea

South Korea South Korea, officially the Republic of Korea (ROK), is a country in East Asia, constituting the southern part of the Korea, Korean Peninsula and sharing a Korean Demilitarized Zone, land border with North Korea. Its western border is formed ...
has a multi-party system that has sometimes been described as having characteristics of a two-party system. Parties will have reconstructions based upon its leader, but the country continues to maintain two major parties. Currently these parties are the
liberal Liberal or liberalism may refer to: Politics * a supporter of liberalism ** Liberalism by country * an adherent of a Liberal Party * Liberalism (international relations) * Sexually liberal feminism * Social liberalism Arts, entertainment and m ...
Democratic Party of Korea The Democratic Party of Korea (DPK; ), formerly known as the New Politics Alliance for Democracy (NPAD), is a liberal political party in South Korea. Controlling the unicameral National Assembly as of 2022, the DPK is regarded as one of two maj ...
and the
conservative Conservatism is a cultural, social, and political philosophy that seeks to promote and to preserve traditional institutions, practices, and values. The central tenets of conservatism may vary in relation to the culture and civilization i ...
People Power Party.


Taiwan

Taiwan Taiwan, officially the Republic of China (ROC), is a country in East Asia, at the junction of the East and South China Seas in the northwestern Pacific Ocean, with the People's Republic of China (PRC) to the northwest, Japan to the nort ...
has a multi-party system that has sometimes been described as having characteristics of a two-party system. Currently these parties are the progressive
Democratic Progressive Party The Democratic Progressive Party (DPP) is a Taiwanese nationalist and centre-left political party in the Republic of China (Taiwan). Controlling both the Republic of China presidency and the unicameral Legislative Yuan, it is the majori ...
and the
conservative Conservatism is a cultural, social, and political philosophy that seeks to promote and to preserve traditional institutions, practices, and values. The central tenets of conservatism may vary in relation to the culture and civilization i ...
Kuomintang The Kuomintang (KMT), also referred to as the Guomindang (GMD), the Nationalist Party of China (NPC) or the Chinese Nationalist Party (CNP), is a major political party in the Republic of China, initially on the Chinese mainland and in Tai ...
.


Lebanon

The
Parliament of Lebanon The Lebanese Parliament ( ar, مجلس النواب, translit=Majlis an-Nuwwab; french: Chambre des députés) is the national parliament of the Republic of Lebanon. There are 128 members elected to a four-year term in multi-member constit ...
is mainly made up of two
bipartisan Bipartisanship, sometimes referred to as nonpartisanship, is a political situation, usually in the context of a two-party system (especially those of the United States and some other western countries), in which opposing political parties find co ...
alliances. Although both alliances are made up of several political parties on both ends of the
political spectrum A political spectrum is a system to characterize and classify different political positions in relation to one another. These positions sit upon one or more geometric axes that represent independent political dimensions. The expressions politi ...
the two-way political situation has mainly arisen due to strong ideological differences in the electorate. Once again this can mainly be attributed to the winner takes all thesis.


Brazil

During the imperial period, since 1840, two great parties with a national base alternated its dominance between legislatures: the
Liberal Liberal or liberalism may refer to: Politics * a supporter of liberalism ** Liberalism by country * an adherent of a Liberal Party * Liberalism (international relations) * Sexually liberal feminism * Social liberalism Arts, entertainment and m ...
and the
Conservative Conservatism is a cultural, social, and political philosophy that seeks to promote and to preserve traditional institutions, practices, and values. The central tenets of conservatism may vary in relation to the culture and civilization i ...
. These parties were dissolved in 1889, after the republic was instituted in Brazil, in which the registration of party directories came under the jurisdiction of the states.
Brazil Brazil ( pt, Brasil; ), officially the Federative Republic of Brazil (Portuguese: ), is the largest country in both South America and Latin America. At and with over 217 million people, Brazil is the world's fifth-largest country by area ...
also had a two-party system for most of its military dictatorship (1964–1985): on October 27, 1965, the Institutional Act 2 decree banned all existing parties and conditioned the creation of new parties to the quorum of 1/3 of the then-elected National Congress; resulting in the creation of two parties: a pro-government party, the
National Renewal Alliance The National Renewal Alliance (Portuguese: ''Aliança Renovadora Nacional'', ARENA) was a far-right political party that existed in Brazil between 1966 and 1979. It was the official party of the military dictatorship that ruled Brazil from 1964 ...
(ARENA) and an opposition party, the
Brazilian Democratic Movement The Brazilian Democratic Movement ( pt, Movimento Democrático Brasileiro, MDB) is a Brazilian political party. It is considered a " big tent party" and it is one of the parties with the greatest representation throughout the national territory, ...
(MDB). Despite officially having a bipartisan system, complex electoral mechanisms, nominally neutral, were created to guarantee the prevalence of the ARENA in the National Congress, making Brazil, in practice, a
dominant-party system A dominant-party system, or one-party dominant system, is a political occurrence in which a single political party continuously dominates election results over running opposition groups or parties. Any ruling party staying in power for more th ...
in that period. The two parties were dissolved in 1979, when the regime allowed other parties to form.


Spain

A report in ''
The Christian Science Monitor ''The Christian Science Monitor'' (''CSM''), commonly known as ''The Monitor'', is a nonprofit news organization that publishes daily articles in electronic format as well as a weekly print edition. It was founded in 1908 as a daily newspaper ...
'' in 2008 suggested that
Spain , image_flag = Bandera de España.svg , image_coat = Escudo de España (mazonado).svg , national_motto = ''Plus ultra'' (Latin)(English: "Further Beyond") , national_anthem = (English: "Royal March") , i ...
was moving towards a "greater two-party system" while acknowledging that Spain has "many small parties". However a 2015 article published by ''
WashingtonPost.com ''The Washington Post'' (also known as the ''Post'' and, informally, ''WaPo'') is an American daily newspaper published in Washington, D.C. It is the most widely circulated newspaper within the Washington metropolitan area and has a large nat ...
'' written by academic Fernando Casal Bértoa noted the decline in support for the two main parties, the People's Party (PP) and the
Spanish Socialist Workers' Party The Spanish Socialist Workers' Party ( es, Partido Socialista Obrero Español ; PSOE ) is a social-democraticThe PSOE is described as a social-democratic party by numerous sources: * * * * political party in Spain. The PSOE has been in gov ...
(PSOE) in recent years, with these two parties winning only 52 percent of the votes in that year's
regional In geography, regions, otherwise referred to as zones, lands or territories, are areas that are broadly divided by physical characteristics (physical geography), human impact characteristics (human geography), and the interaction of humanity and t ...
and
local Local may refer to: Geography and transportation * Local (train), a train serving local traffic demand * Local, Missouri, a community in the United States * Local government, a form of public administration, usually the lowest tier of administrat ...
elections. He explained this as being due to the Spanish economic crisis, a series of political corruption scandals and broken campaign promises. He argued that the emergence of the new
Citizens Citizenship is a "relationship between an individual and a state to which the individual owes allegiance and in turn is entitled to its protection". Each state determines the conditions under which it will recognize persons as its citizens, and ...
and Podemos parties would mean the political system would evolve into a two-bloc system, with an alliance of the PP and Citizens on the right facing a leftist coalition of PSOE, Podemos and the United Left. Far-right Vox party became the third largest group on the Spanish parliament recently.


Comparisons with other party systems

Two-party systems can be contrasted with: *
Multi-party system In political science, a multi-party system is a political system in which multiple political parties across the political spectrum run for national elections, and all have the capacity to gain control of government offices, separately or in coal ...
s. In these, the
effective number of parties The effective number of parties is a concept introduced by Laakso and Taagepera (1979) which provides for an adjusted number of political parties in a country's party system. The idea behind this measure is to count parties and, at the same time, ...
is greater than two but usually fewer than five; in a two-party system, the effective number of parties is two (according to one analysis, the actual average number of parties varies between 1.7 and 2.1). The parties in a multi-party system can control government separately or as a coalition; in a two-party system, however, coalition governments rarely form. Examples of nations with multi-party systems include
Brazil Brazil ( pt, Brasil; ), officially the Federative Republic of Brazil (Portuguese: ), is the largest country in both South America and Latin America. At and with over 217 million people, Brazil is the world's fifth-largest country by area ...
,
Canada Canada is a country in North America. Its ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, covering over , making it the world's second-largest country by tot ...
,
Denmark ) , song = ( en, "King Christian stood by the lofty mast") , song_type = National and royal anthem , image_map = EU-Denmark.svg , map_caption = , subdivision_type = Sovereign state , subdivision_name = Danish Realm, Kingdom of Denmark ...
,
Finland Finland ( fi, Suomi ; sv, Finland ), officially the Republic of Finland (; ), is a Nordic country in Northern Europe. It shares land borders with Sweden to the northwest, Norway to the north, and Russia to the east, with the Gulf of B ...
,
France France (), officially the French Republic ( ), is a country primarily located in Western Europe. It also comprises of Overseas France, overseas regions and territories in the Americas and the Atlantic Ocean, Atlantic, Pacific Ocean, Pac ...
,
Germany Germany,, officially the Federal Republic of Germany, is a country in Central Europe. It is the second most populous country in Europe after Russia, and the most populous member state of the European Union. Germany is situated betwe ...
,
India India, officially the Republic of India (Hindi: ), is a country in South Asia. It is the seventh-largest country by area, the second-most populous country, and the most populous democracy in the world. Bounded by the Indian Ocean on the so ...
,
Pakistan Pakistan ( ur, ), officially the Islamic Republic of Pakistan ( ur, , label=none), is a country in South Asia. It is the world's List of countries and dependencies by population, fifth-most populous country, with a population of almost 24 ...
,
Indonesia Indonesia, officially the Republic of Indonesia, is a country in Southeast Asia and Oceania between the Indian and Pacific oceans. It consists of over 17,000 islands, including Sumatra, Java, Sulawesi, and parts of Borneo and New Guine ...
,
Ireland Ireland ( ; ga, Éire ; Ulster Scots dialect, Ulster-Scots: ) is an island in the Atlantic Ocean, North Atlantic Ocean, in Northwestern Europe, north-western Europe. It is separated from Great Britain to its east by the North Channel (Grea ...
,
Israel Israel (; he, יִשְׂרָאֵל, ; ar, إِسْرَائِيل, ), officially the State of Israel ( he, מְדִינַת יִשְׂרָאֵל, label=none, translit=Medīnat Yīsrāʾēl; ), is a country in Western Asia. It is situated ...
,
Italy Italy ( it, Italia ), officially the Italian Republic, ) or the Republic of Italy, is a country in Southern Europe. It is located in the middle of the Mediterranean Sea, and its territory largely coincides with the homonymous geographical re ...
,
Mexico Mexico (Spanish: México), officially the United Mexican States, is a country in the southern portion of North America. It is bordered to the north by the United States; to the south and west by the Pacific Ocean; to the southeast by Guatema ...
,
Nepal Nepal (; ne, नेपाल ), formerly the Federal Democratic Republic of Nepal ( ne, सङ्घीय लोकतान्त्रिक गणतन्त्र नेपाल ), is a landlocked country in South Asia. It is mai ...
, the
Netherlands ) , anthem = ( en, "William of Nassau") , image_map = , map_caption = , subdivision_type = Sovereign state , subdivision_name = Kingdom of the Netherlands , established_title = Before independence , established_date = Spanish Netherl ...
,
Belgium Belgium, ; french: Belgique ; german: Belgien officially the Kingdom of Belgium, is a country in Northwestern Europe. The country is bordered by the Netherlands to the north, Germany to the east, Luxembourg to the southeast, France to th ...
,
New Zealand New Zealand ( mi, Aotearoa ) is an island country in the southwestern Pacific Ocean. It consists of two main landmasses—the North Island () and the South Island ()—and over 700 smaller islands. It is the sixth-largest island count ...
,
Norway Norway, officially the Kingdom of Norway, is a Nordic country in Northern Europe, the mainland territory of which comprises the western and northernmost portion of the Scandinavian Peninsula. The remote Arctic island of Jan Mayen and t ...
,
Philippines The Philippines (; fil, Pilipinas, links=no), officially the Republic of the Philippines ( fil, Republika ng Pilipinas, links=no), * bik, Republika kan Filipinas * ceb, Republika sa Pilipinas * cbk, República de Filipinas * hil, Republ ...
,
Portugal Portugal, officially the Portuguese Republic ( pt, República Portuguesa, links=yes ), is a country whose mainland is located on the Iberian Peninsula of Southwestern Europe, and whose territory also includes the Atlantic archipelagos of ...
,
Ukraine Ukraine ( uk, Україна, Ukraïna, ) is a country in Eastern Europe. It is the second-largest European country after Russia, which it borders to the east and northeast. Ukraine covers approximately . Prior to the ongoing Russian inv ...
,
Spain , image_flag = Bandera de España.svg , image_coat = Escudo de España (mazonado).svg , national_motto = ''Plus ultra'' (Latin)(English: "Further Beyond") , national_anthem = (English: "Royal March") , i ...
,
Sweden Sweden, formally the Kingdom of Sweden,The United Nations Group of Experts on Geographical Names states that the country's formal name is the Kingdom of SwedenUNGEGN World Geographical Names, Sweden./ref> is a Nordic country located on ...
and Thailand. * Dominant-party systems are present in countries, which are formally democratic, but a dominant party hold a vast majority for decades and the party institutions are partially molten with the major institutions of the state. Unlike in one-party-states, civil rights and freedom of press are at least partly preserved. Examples for this type are the People's Action Party of Singapore, the South African African National Congress, National Congress, the SWAPO in Namibia, and United Russia in Russia. * One-party state, One-party systems happen in nations where no more than one party is codified in law and/or officially recognized, or where alternate parties are restricted by the dominant party which wields power. Examples include rule by the Chinese Communist Party, Communist Party of Vietnam, and Communist Party of Cuba.


Causes

There are several reasons why, in some systems, two major parties dominate the political landscape. There has been speculation that a two-party system arose in the United States from early political battling between the federalists and anti-federalists in the first few decades after the ratification of the United States Constitution, Constitution, according to several views. In addition, there has been more speculation that the winner-takes-all electoral system as well as particular state and federal laws regarding voting procedures helped to cause a two-party system. Political scientists such as Maurice Duverger and William H. Riker claim that there are strong correlations between voting rules and type of party system. Jeffrey D. Sachs agreed that there was a link between voting arrangements and the effective number of parties. Sachs explained how the first-past-the-post voting arrangement tended to promote a two-party system: Consider a system in which voters can vote for any candidate from any one of many parties. Suppose further that if a party gets 15% of votes, then that party will win 15% of the seats in the legislature. This is termed ''proportional representation'' or more accurately as ''party-proportional representation''. Political scientists speculate that proportional representation leads logically to multi-party systems, since it allows new parties to build a niche in the legislature: In contrast, a voting system that allows only a single winner for each possible legislative seat is sometimes termed a plurality voting system or single-winner voting system and is usually described under the heading of a ''winner-takes-all'' arrangement. Each voter can cast a single vote for any candidate within any given legislative district, but the candidate with the most votes wins the seat, although variants, such as requiring a majority, are sometimes used. What happens is that in a general election, a party that consistently comes in third in every district is unlikely to win any legislative seats even if there is a significant proportion of the electorate favoring its positions. This arrangement strongly favors large and well–organized political parties that are able to appeal to voters in many districts and hence win many seats, and discourages smaller or regional parties. Politically oriented people consider their only realistic way to capture political power is to run under the auspices of the two dominant parties. In the U.S., forty-eight states have a standard ''winner-takes-all'' electoral system for amassing presidential votes in the Electoral College (United States), Electoral College system. The ''winner-takes-all'' principle applies in presidential elections, since if a presidential candidate gets the most votes in any particular state, ''all'' of the electoral votes from that state are awarded. In all but two states, Maine and Nebraska, the presidential candidate winning a plurality of votes wins all of the electoral votes, a practice called the unit rule. Duverger concluded that "plurality election single-ballot procedures are likely to produce two-party systems, whereas proportional representation and runoff designs encourage multipartyism." He suggested there were two reasons why ''winner-takes-all'' systems leads to a two-party system. First, the weaker parties are pressured to form an alliance, sometimes called a ''fusion'', to try to become big enough to challenge a large dominant party and, in so doing, gain political clout in the legislature. Second, voters learn, over time, not to vote for candidates outside of one of the two large parties since their votes for third party candidates are usually ineffectual. As a result, weaker parties are eliminated by voters over time. Duverger pointed to statistics and tactics to suggest that voters tended to gravitate towards one of the two main parties, a phenomenon which he called ''polarization'', and tend to shun third parties. For example, some analysts suggest that the Electoral College (United States), Electoral College system in the United States, by favoring a system of winner-takes-all in presidential elections, is a structural choice favoring only two major parties. Gary Cox suggested that America's two-party system was highly related with economic prosperity in the country: An effort in 2012 by centrist groups to promote ballot access by third-party candidates called Americans Elect spent $15 million to get ballot access but failed to elect any candidates. The lack of choice in a two-party model in politics has often been compared to the variety of choices in the marketplace.


Third parties

Third parties, meaning a party other than one of the two dominant parties, are possible in two-party systems, but they are often unlikely to exert much influence by gaining control of legislatures or by winning elections. While there are occasional opinions in the media expressed about the possibility of third parties emerging in the United States, for example, political insiders such as the 1980 presidential candidate John Anderson think the chances of one appearing in the early twenty-first century is remote. A report in ''The Guardian'' suggested that American politics has been "stuck in a two-way fight between Republican Party (United States), Republicans and Democratic Party (United States), Democrats" since the American Civil War, Civil War, and that third-party runs had little meaningful success. Third parties in a two-party system can be: * Built around a particular ideology or interest group * Split off from one of the major parties or * Focused on a charisma, charismatic individual. When third parties are built around an ideology which is at odds with the majority mindset, many members belong to such a party not for the purpose of expecting electoral success but rather for personal or psychological reasons. In the U.S., third parties include older ones such as the Libertarian Party (United States), Libertarian Party and the Green Party (United States), Green Party and newer ones such as the United States Pirate Party, Pirate Party. Many believe that third parties do not affect American politics by winning elections, but they can act as "spoilers" by taking votes from one of the two major parties. They act like barometers of change in the political mood since they push the major parties to consider their demands. An analysis in ''New York Magazine'' by Ryan Lizza in 2006 suggested that third parties arose from time to time in the nineteenth century around single-issue movements such as abolition, women's suffrage, and the direct election of senators, but were less prominent in the twentieth century. A so-called ''third party'' in the
United Kingdom The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Europe, off the north-western coast of the continental mainland. It comprises England, Scotland, Wales and North ...
were historically the Liberal Democrats (UK), Liberal Democrats, prior to the Scottish National Party taken its place since the 2015 United Kingdom general election, 2015 election by number of the House of Common seats. In the 2010 United Kingdom general election, 2010 election, the Liberal Democrats received 23% of the votes but only 9% of the seats in the House of Commons of the United Kingdom, House of Commons. While electoral results do not necessarily translate into legislative seats, the Liberal Democrats can exert influence if there is a situation such as a
hung parliament A hung parliament is a term used in legislatures primarily under the Westminster system to describe a situation in which no single political party or pre-existing coalition (also known as an alliance or bloc) has an absolute majority of legisl ...
. In this instance, neither of the two main parties (at present, the
Conservative Party The Conservative Party is a name used by many political parties around the world. These political parties are generally right-wing though their exact ideologies can range from center-right to far-right. Political parties called The Conservative P ...
and the Labour Party) have sufficient authority to run the government. Accordingly, the Liberal Democrats can in theory exert tremendous influence in such a situation since they can ally with one of the two main parties to form a coalition. This happened in the Cameron–Clegg coalition, Coalition government of 2010. More than 13% of the seats in the House of Commons of the United Kingdom, British House of Commons are held in 2011 by representatives of political parties other than the two leading political parties of that nation, such that contemporary Britain is considered by some to be a
multi-party system In political science, a multi-party system is a political system in which multiple political parties across the political spectrum run for national elections, and all have the capacity to gain control of government offices, separately or in coal ...
, and not a two-party system. The two party system in the United Kingdom allows for other parties to exist, although the main two parties tend to dominate politics; in this arrangement, other parties are not excluded and can win seats in Parliament. In contrast, the two party system in the United States has been described as a duopoly or an enforced two-party system, such that politics is almost entirely dominated by either the Republicans or Democrats, and third parties rarely win seats in United States Congress, Congress.


Advantages

Some historians have suggested that two-party systems promote centrism and encourage political parties to find common positions which appeal to wide swaths of the electorate. It can lead to political stability which leads, in turn, to economic growth. Historian Patrick Allitt of the Teaching Company suggested that it is difficult to overestimate the long-term economic benefits of political stability. Sometimes two-party systems have been seen as preferable to multi-party systems because they are simpler to govern, with less fractiousness and greater harmony, since it discourages radical minor parties, while multi-party systems can sometimes lead to
hung parliament A hung parliament is a term used in legislatures primarily under the Westminster system to describe a situation in which no single political party or pre-existing coalition (also known as an alliance or bloc) has an absolute majority of legisl ...
s. Politics in Italy, Italy, with a multi-party system, has had years of divisive politics since 2000, although analyst Silvia Aloisi suggested in 2008 that the nation may be moving closer to a two-party arrangement. The two-party has been identified as simpler since there are fewer voting choices.


Disadvantages

Two-party systems have been criticized for downplaying alternative views, being less competitive, encouraging voter apathy since there is a perception of fewer choices, and putting a damper on debate within a nation. In a proportional representation system, lesser parties can moderate policy since they are not usually eliminated from government. One analyst suggested the two-party approach may not promote inter-party compromise but may encourage partisanship. In ''The Tyranny of the Two-party system'', Lisa Jane Disch criticizes two-party systems for failing to provide enough options since only two choices are permitted on the ballot. She wrote: There have been arguments that the winner-take-all mechanism discourages independent or third-party candidates from running for office or promulgating their views.
Ross Perot Henry Ross Perot (; June 27, 1930 – July 9, 2019) was an American business magnate, billionaire, politician and philanthropist. He was the founder and chief executive officer of Electronic Data Systems and Perot Systems. He ran an inde ...
's former campaign manager wrote that the problem with having only two parties is that the nation loses "the ability for things to bubble up from the body politic and give voice to things that aren't being voiced by the major parties." One analyst suggested that parliamentary systems, which typically are multi-party in nature, lead to a better "centralization of policy expertise" in government. Multi-party governments permit wider and more diverse viewpoints in government, and encourage dominant parties to make deals with weaker parties to form winning coalitions. Analyst Chris Weigant of ''the Huffington Post'' wrote that "the parliamentary system is inherently much more open to minority parties getting much better representation than third parties do in the American system". After an election in which the party changes, there can be a "polar shift in policy-making" when voters react to changes. Political analyst A. G. Roderick, writing in his book ''Two Tyrants'', argued that the two American parties (the Republican Party and the Democratic Party) were highly unpopular (as of 2015), are not part of the political framework of state governments, and do not represent the 47% of the electorate who identify themselves as "independents". He makes a case that the POTUS, American president should be elected on a non-partisan basis,Wisconsin Public Radio
Two Tyrants
interview by Kathleen Dunn with author A.G. Roderick
and asserts that both political parties are "cut from the same cloth of corruption and corporate influence." Others have accused two party systems of encouraging an environment which stifles individual thought processes and analysis. In a two party system, knowledge about political leaning facilitates assumptions to be made about an individuals' opinions on a wide variety of topics (e.g. abortion, Tax, taxes, the space program, a Pandemic, viral pandemic, human sexuality, the Environmental issues, environment, War, warfare, opinions on police, etc.) which are not necessarily connected.
"The more destructive problem is the way this skews the discussion of the issues facing the nation. The media – meaning news sources from Fox News to the The New York Times, ''New York Times'' and everything in between – seem largely incapable of dealing with any issue outside of the liberal versus conservative paradigm. Whether it's dealing with Islamic State, ISIS, the United States debt ceiling, debt ceiling, or climate change, the media frames every issue as a simple debate between the Democratic and the Republican positions. This creates the ludicrous idea that every public policy problem has two, and only two, approaches. That's nonsense. Certainly some problems have only two resolutions, some have only one, but most have a range of possible solutions. But the "national" debate presents every issue as a simplistic duality, which trivializes everything." —Michael Coblenz, 2016


History


Beginnings of parties in Britain

The two-party system, in the sense of the looser definition, where two parties dominate politics but in which third parties can elect members and gain some representation in the legislature, can be traced to the development of political parties in the
United Kingdom The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Europe, off the north-western coast of the continental mainland. It comprises England, Scotland, Wales and North ...
. There was a division in Politics of England, English politics at the time of the English Civil War, Civil War and Glorious Revolution in the late 17th century. The Whigs (British political party), Whigs supported Protestant constitutional monarchy against Absolute Monarchy, absolute rule and the Tory (British political party), Tories, originating in the Royalist (or "Cavalier") faction of the English Civil War, were conservative royalist supporters of a strong monarchy as a counterbalance to the Republicanism in the United Kingdom, republican tendencies of Parliament. In the following century, the Whig party's support base widened to include emerging industrial interests and wealthy merchants. The basic matters of principle that defined the struggle between the two factions, were concerning the nature of constitutional monarchy, the desirability of a Catholic king, the extension of religious toleration to Nonconformist (Protestantism), nonconformist Protestants, and other issues that had been put on the liberal agenda through the political concepts propounded by John Locke, Algernon Sidney and others. Vigorous struggle between the two factions characterised the period from the Glorious Revolution to the 1715 Hanoverian succession, over the legacy of the overthrow of the Stuart dynasty and the nature of the new constitutional state. This proto two-party system fell into relative abeyance after the accession to the throne of George I of Great Britain, George I and the consequent period of Whig supremacy under Robert Walpole, during which the Tories were systematically purged from high positions in government. However, although the Tories were dismissed from office for half a century, they still retained a measure of party cohesion under Sir William Wyndham, 3rd Baronet, William Wyndham and acted as a united, though unavailing, opposition to Whig corruption and scandals. At times they cooperated with the "Opposition Whigs", Whigs who were in opposition to the Whig government; however, the ideological gap between the Tories and the Opposition Whigs prevented them from coalescing as a single party.


Emergence of the two-party system in Britain

The old Whig leadership dissolved in the 1760s into a decade of factional chaos with distinct "Grenvillite", "Bedfordite", "Rockingham Whigs, Rockinghamite", and "William Pitt, 1st Earl of Chatham, Chathamite" factions successively in power, and all referring to themselves as "Whigs". Out of this chaos, the first distinctive parties emerged. The first such party was the Rockingham Whigs under the leadership of Charles Watson-Wentworth, 2nd Marquess of Rockingham, Charles Watson-Wentworth and the intellectual guidance of the political philosophy, political philosopher Edmund Burke. Burke laid out a philosophy that described the basic framework of the political party as "a body of men united for promoting by their joint endeavours the national interest, upon some particular principle in which they are all agreed". As opposed to the instability of the earlier factions, which were often tied to a particular leader and could disintegrate if removed from power, the two party system was centred on a set of core principles held by both sides and that allowed the party out of power to remain as the Loyal Opposition to the governing party. A genuine two-party system began to emerge, with the accession to power of William Pitt the Younger in 1783 leading the new Tories, against a reconstituted "Whig" party led by the radicalism (politics), radical politician Charles James Fox. The two-party system matured in the early 19th century 1832 Reform Act, era of political reform, when the franchise was widened and politics entered into the basic divide between conservatism and liberalism that has fundamentally endured up to the present. The modern
Conservative Party The Conservative Party is a name used by many political parties around the world. These political parties are generally right-wing though their exact ideologies can range from center-right to far-right. Political parties called The Conservative P ...
was created out of the British Tory Party#Pittites, "Pittite" Tories by Robert Peel, who issued the Tamworth Manifesto in 1834 which set out the basic principles of Conservatism – the necessity in specific cases of reform in order to survive, but an opposition to unnecessary change, that could lead to "a perpetual vortex of agitation". Meanwhile, the Whigs, along with free trade Tory followers of Robert Peel, and independent Radicals (UK), Radicals, formed the Liberal Party (UK), Liberal Party under Henry John Temple, 3rd Viscount Palmerston, Lord Palmerston in 1859, and transformed into a party of the growing urban middle-class, under the long leadership of William Ewart Gladstone. The two party system had come of age at the time of Gladstone and his Conservative rival Benjamin Disraeli after the 1867 Reform Act.


History of American political parties

Although the Founding Fathers of the United States did not originally intend for American politics to be partisan, early political controversies in the 1790s saw the emergence of a two-party political system, the Federalist Party (United States), Federalist Party and the Democratic-Republican Party (United States), Democratic-Republican Party, centred on the differing views on federal government powers of United States Secretary of the Treasury, Secretary of the Treasury
Alexander Hamilton Alexander Hamilton (January 11, 1755 or 1757July 12, 1804) was an American military officer, statesman, and Founding Father who served as the first United States secretary of the treasury from 1789 to 1795. Born out of wedlock in Charlest ...
and James Madison. However, a consensus reached on these issues ended party politics in 1816 for a decade, a period commonly known as the Era of Good Feelings.Stephen Minicucci
Internal Improvements and the Union, 1790–1860
, Studies in American Political Development (2004), 18: pp. 160–85, (2004), Cambridge University Press,
Partisan politics revived in 1829 with the split of the Democratic-Republican Party into the Jacksonian Democracy, Jacksonian Democrats led by
Andrew Jackson Andrew Jackson (March 15, 1767 – June 8, 1845) was an American lawyer, planter, general, and statesman who served as the seventh president of the United States from 1829 to 1837. Before being elected to the presidency, he gained fame as ...
, and the Whig Party, led by Henry Clay. The former evolved into the modern
Democratic Party Democratic Party most often refers to: *Democratic Party (United States) Democratic Party and similar terms may also refer to: Active parties Africa *Botswana Democratic Party *Democratic Party of Equatorial Guinea *Gabonese Democratic Party *Demo ...
and the latter was replaced with the History of United States Republican Party, Republican Party as one of the two main parties in the 1850s.


See also

* Duverger's law * False dichotomy *
Multi-party system In political science, a multi-party system is a political system in which multiple political parties across the political spectrum run for national elections, and all have the capacity to gain control of government offices, separately or in coal ...
* Dominant-party system * One-party state * Political organisation


Notes


References


External links

* Patrick Dunleavy, Dunleavy, Patrick
Duverger’s Law is a dead parrot. Outside the USA, first-past-the-post voting has no tendency at all to produce two party politics
{{Authority control Types of democracy Elections Political party systems