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In a first-past-the-post electoral system (FPTP or FPP), formally called single-member plurality voting (SMP) when used in single-member districts or informally choose-one voting in contrast to
ranked voting The term ranked voting (also known as preferential voting or ranked choice voting) refers to any voting system in which voters rank their candidates (or options) in a sequence of first or second (or third, etc.) on their respective ballots. Ra ...
, or score voting, voters cast their vote for a candidate of their choice, and the candidate who receives the most votes wins even if the top candidate gets less than 50%, which can happen when there are more than two popular candidates. As a winner-take-all method, FPTP often produces disproportional results (when electing members of an assembly, such as a parliament) in the sense that political parties do not get representation according to their share of the popular vote. This usually favours the largest party and parties with strong regional support to the detriment of smaller parties without a geographically concentrated base. Supporters of electoral reform are generally highly critical of FPTP because of this and point out other flaws, such as FPTP's vulnerability to
gerrymandering In representative democracies, gerrymandering (, originally ) is the political manipulation of electoral district boundaries with the intent to create undue advantage for a party, group, or socioeconomic class within the constituency. The m ...
, the high amount of wasted votes and the chance of a majority reversal (when the party that wins the most votes gets fewer seats than the second largest party, and so loses the election). For these reasons, many countries have abandoned FPTP in favour of other electoral systems, but FPTP is used as the primary form of allocating seats for legislative elections in about a third of the world's countries, mostly in the English-speaking world. Some countries use FPTP alongside proportional representation in a parallel voting system, the PR element not compensating for but added to the disproportionality of FPTP. Others use it in so-called compensatory mixed systems, such as part of mixed-member proportional representation or
mixed single vote The mixed single vote (MSV) or positive vote transfer system (PVT) is a mixed-member electoral system, where voters cast a single vote in an election, which used both for electing a local candidate and as a vote for a party affiliated with that ...
systems, which aim to counterbalance these. In some countries that elect their legislatures by proportional representation, FPTP is used to elect their head of state.


Terminology

The phrase ''first-past-the-post'' is a metaphor from British horse racing, where there is a post at the finish line (though there is no specific percentage "finish line" required to win in this voting system, only being furthest ahead in the race). FPTP is a
plurality voting Plurality voting refers to electoral systems in which a candidate, or candidates, who poll more than any other counterpart (that is, receive a plurality), are elected. In systems based on single-member districts, it elects just one member pe ...
method, a ''plurality'' meaning the largest part of the whole, in contrast to '' majority'', which generally means more than half of the whole. Under FPTP the candidate with the highest number (but not necessarily a majority) of votes is elected. Sometimes the term ''relative majority'' is used to refer to a plurality as opposed to an ''absolute majority'' meaning a (standard) majority. The word majority is also sometimes used to refer to the number of votes (or percentage of votes) a candidate won an election with: "Candidate A won the election with a 5000 vote majority" would mean Candidate got 5000 more votes than Candidate B, but could also mean Candidate A won 5000 votes in total, and won. Even though FPTP is a type of plurality voting, it is categorised as majoritarian system, even though it is not "majority voting" (like a two-round system is). This is because majoritarian representation (one of the 3 major types of electoral systems alongside
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 mixed systems) is defined by the winner (of an electoral district) getting all the seats, and therefore all single-winner systems (such as FPTP) are majoritarian. FPTP is primarily used in systems that use single-member electoral divisions. The multiple-member version of plurality voting is when each voter casts (up to) the same number of votes as there are positions to be filled, and those elected are the highest-placed candidates; this system is called the multiple non-transferable vote (MNTV) and is also known as Plurality block voting. When voters have only a single vote each, which is non-transferable, but there are multiple seats to be filled, that system is called the single non-transferable vote (SNTV). When voters have only a single vote each, which is a preferential vote and transferable if necessary, but there are multiple seats to be filled, that system is called the
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 ...
(STV). The multiple-round election (
runoff voting Runoff voting can refer to: * Two-round system, a voting system used to elect a single winner, whereby only two candidates from the first round continue to the second round, where one candidate will win. * Instant-runoff voting, an electoral system ...
) method most commonly uses the FPTP voting method in the second round. The first round, usually held according to SNTV rules, determines which candidates may progress to the second and final round. As usually only two candidates are in the second round, one or the other takes a majority of the votes. Thus, it is truly majoritarian.


Illustration

Under a first-past-the-post voting method, the highest-polling candidate is elected. In this real-life illustration from the
2011 Singaporean presidential election The 2011 Singaporean presidential election was held to elect the next President of Singapore. Four eligible candidates were issued certificates of eligibility by the Presidential Elections Committee, and were nominated on Nomination Day with To ...
, presidential candidate
Tony Tan Tony Tan Keng Yam (; born 7 February 1940) is a Singaporean former politician who served as the seventh president of Singapore between 2011 and 2017. He did not seek for a second term as president in 2017 due to a constitutional amendment ...
obtained a greater number of votes than any of the other candidates. Therefore, he was declared the winner, although the second-placed candidate had an inferior margin of only 0.35% and a majority of voters (64.8%) did not vote for Tony Tan: It is not clear that Tan would have won if the votes against him had not been split among the other three candidates.


Effects

The effect of a system based on plurality voting spread over many separate districts is that the larger parties, and parties with more geographically concentrated support, gain a disproportionately large share of seats, while smaller parties with more evenly distributed support gain a disproportionately small share. As voting patterns are similar in about two-thirds of the districts, it is more likely that a single party will hold a majority of legislative seats under FPTP than happens in a proportional system, and under FPTP it is rare to elect a majority government that actually has the support of a majority of voters. In Canada, majority governments have been formed thanks to one party winning a majority of the votes cast in Canada only three times since 1921: in
1940 A calendar from 1940 according to the Gregorian calendar, factoring in the dates of Easter and related holidays, cannot be used again until the year 5280. Events Below, the events of World War II have the "WWII" prefix. January * Januar ...
, 1958 and
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 Southeas ...
. In the United Kingdom, 19 of the 24 general elections since 1922 have produced a single-party majority government. In all but two of them (
1931 Events January * January 2 – South Dakota native Ernest Lawrence invents the cyclotron, used to accelerate particles to study nuclear physics. * January 4 – German pilot Elly Beinhorn begins her flight to Africa. * January 22 – Sir I ...
and 1935), the leading party did not take a majority of the votes across the UK. For example, the 2005 general election results were as follows: In this example, Labour took a majority of the seats with only 36% of the vote. The largest ''two'' parties took 69% of the vote and 88% of the seats. In contrast, the Liberal Democrats took more than 20% of the vote but only about 10% of the seats. FPTP wastes fewer votes when it is used in two-party contests. But waste of votes and minority governments are more likely when large groups of voters vote for three, four or more parties as in Canadian elections. Canada uses FPTP and only two of the last seven federal Canadian elections ( 2011 and 2015) produced single-party majority governments. In none of them did the leading party receive a majority of the votes.


Arguments in support

Supporters of FPTP argue that it is easy to understand, and ballots can be counted and processed more easily than those in
preferential voting {{short description, Election systems Preferential voting or preference voting (PV) may refer to different election systems or groups of election systems: * Ranked voting methods, all election methods that involve ranking candidates in order of pr ...
systems. FPTP often produces governments which have legislative voting majorities, thus providing such governments the legislative power necessary to implement their electoral manifesto commitments during their term in office. This may be beneficial for the country in question in circumstances where the government's legislative agenda has broad public support, albeit potentially divided across party lines, or at least benefits society as a whole. However handing a legislative voting majority to a government which lacks popular support can be problematic where said government's policies favour only that fraction of the electorate that supported it, particularly if the electorate divides on tribal, religious, or urban–rural lines. Supporters of FPTP also argue that the use of
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 ...
(PR) may enable smaller parties to become decisive in the country's
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 gain leverage they would not otherwise enjoy, although this can be somewhat mitigated by a large enough
electoral threshold The electoral threshold, or election threshold, is the minimum share of the primary vote that a candidate or political party requires to achieve before they become entitled to representation or additional seats in a legislature. This limit can ...
. They argue that FPTP generally reduces this possibility, except where parties have a strong regional basis. A journalist at '' Haaretz'' noted that Israel's highly proportional Knesset "affords great power to relatively small parties, forcing the government to give in to political blackmail and to reach compromises"; Tony Blair, defending FPTP, argued that other systems give small parties the balance of power, and influence disproportionate to their votes. Allowing people into parliament who did not finish first in their district was described by David Cameron as creating a "Parliament full of second-choices who no one really wanted but didn't really object to either." Winston Churchill criticized the alternative vote system as "determined by the most worthless votes given for the most worthless candidates."


Arguments against


Unrepresentative

First past the post is most often criticized for its failure to reflect the popular vote in the number of parliamentary/legislative seats awarded to competing parties. Critics argue that a fundamental requirement of an election system is to accurately represent the views of voters, but FPTP often fails in this respect. It often creates "false majorities" by over-representing larger parties (giving a majority of the parliamentary/legislative seats to a party that did not receive a majority of the votes) while under-representing smaller ones. The diagram here, summarizing Canada's 2015 federal election, demonstrates how FPTP can misrepresent the popular vote.


Wasted votes

Wasted vote In electoral systems, a wasted vote is any vote which is not for an elected candidate or, more broadly, a vote that does not help to elect a candidate. The narrower meaning includes ''lost votes'', being only those votes which are for a losing candi ...
s are seen as those cast for losing candidates, and for winning candidates in excess of the number required for victory. For example, in the UK general election of 2005, 52% of votes were cast for losing candidates and 18% were excess votes—a total of 70% "wasted" votes. On this basis a large majority of votes may play no part in determining the outcome. This winner-takes-all system may be one of the reasons why "voter participation tends to be lower in countries with FPTP than elsewhere."


Majority reversal

A majority reversal or election inversion is a situation where the party that gets an overall majority of votes loses the election or does not get a plurality of seats. Famous examples of the second placed party (in votes nationally) winning a majority of seats include the elections in Ghana in 2012, in New Zealand in 1978 and in 1981 and in the United Kingdom in 1951. Famous examples of the second placed party (in votes nationally) winning a plurality of seats include the election in Canada in 2019 and 2021. Even when a party wins more than half the votes in an almost purely two-party-competition, it is possible for the runner-up to win a majority of seats. This happened in Saint Vincent and the Grenadines in 1966,
1998 1998 was designated as the ''International Year of the Ocean''. Events January * January 6 – The ''Lunar Prospector'' spacecraft is launched into orbit around the Moon, and later finds evidence for frozen water, in soil in permanently s ...
and
2020 2020 was heavily defined by the COVID-19 pandemic, which led to global social and economic disruption, mass cancellations and postponements of events, worldwide lockdowns and the largest economic recession since the Great Depression in t ...
and in Belize in
1993 File:1993 Events Collage.png, From left, clockwise: The Oslo I Accord is signed in an attempt to resolve the Israeli–Palestinian conflict; The Russian White House is shelled during the 1993 Russian constitutional crisis; Czechoslovakia is peacefu ...
. This need not be a result of malapportionment. Even if all seats represent the same number of votes, the second placed party (in votes nationally) can win a majority of seats by efficient vote distribution. Winning seats narrowly and losing elsewhere by big margins is more efficient than winning seats by big margins and losing elsewhere narrowly. For a majority in seats, it is enough to win a plurality of votes in a majority of constituencies. Even with only two parties and equal constituencies, to win a majority of seats just requires receiving more than half the vote in more than half the districts -- even if the other party receives all the votes cast in the other districts -- so just over a quarter of the votes of the whole is theoretically enough for a majority in the legislature. Where multiple parties split the vote in a district, as few as 18 percent of the vote is enough to take a seat in FPTP. And where multiple parties win seats, a minority position in the legislature (a party with much less members than half of the assembly) could have the largest block in the chamber and be set in a commanding position, although still needing majority support to pass a bill.


Geographical problems


Geographical favouritism

Generally FPTP favours parties who can concentrate their vote into certain voting districts (or in a wider sense in specific geographic areas). This is because in doing this they win many seats and don't 'waste' many votes in other areas. The British
Electoral Reform Society The Electoral Reform Society (ERS) is an independent campaigning organisation based in the United Kingdom which promotes electoral reform. It seeks to replace first-past-the-post voting with proportional representation, advocating the single t ...
(ERS) says that regional parties benefit from this system. "With a geographical base, parties that are small UK-wide can still do very well". On the other hand, minor parties that do not concentrate their vote usually end up getting a much lower proportion of seats than votes, as they lose most of the seats they contest and 'waste' most of their votes. The ERS also says that in FPTP elections using many separate districts "small parties without a geographical base find it hard to win seats". Make Votes Matter said that in the 2017 UK general election, "the Green Party, Liberal Democrats and UKIP (minor, non-regional parties) received 11% of votes between them, yet they ''shared'' just 2% of seats", and in the
2015 UK general election The 2015 United Kingdom general election was held on Thursday, 7 May 2015 to elect 650 members to the House of Commons. It was the first and only general election held at the end of a Parliament under the Fixed-term Parliaments Act 2011. Local ...
, " e same three parties received almost a quarter of all the votes cast, yet these parties ''shared'' just 1.5% of seats." According to Make Votes Matter, and shown in the chart below, in the 2015 UK general election
UKIP The UK Independence Party (UKIP; ) is a Eurosceptic, right-wing populist political party in the United Kingdom. The party reached its greatest level of success in the mid-2010s, when it gained two members of Parliament and was the largest p ...
came in third in terms of number of votes (3.9 million/12.6%), but gained only one seat in Parliament, resulting in one seat per 3.9 million votes. The Conservatives on the other hand received one seat per 34,000 votes.


Distorted geographical representation

The winner-takes-all nature of FPTP leads to distorted patterns of representation, since it exaggerates the correlation between party support and geography. For example, in the UK the Conservative Party represents most of the rural seats in England, and most of the south of England, while the Labour Party represents most of the English cities and most of the north of England. This pattern hides the large number of votes for the non-dominant party. Parties can find themselves without elected politicians in significant parts of the country, heightening feelings of regionalism. Party supporters (who may nevertheless be a significant minority) in those sections of the country are unrepresented. In the 2019 Canadian federal election
Conservatives 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 in ...
won 98% of the seats in Alberta and Saskatchewan with only 68% of the vote. The lack of non-Conservative representation gives the appearance of greater Conservative support than actually exists. Similarly, in Canada's 2021 elections, the Conservative Party won 88% of the seats in Alberta with only 55% of the vote, and won 100% of the seats in Saskatchewan with only 59% of the vote.


Safe seats

First-past-the-post within geographical areas tends to deliver (particularly to larger parties) a significant number of safe seats, where a representative is sheltered from any but the most dramatic change in voting behaviour. In the UK, the Electoral Reform Society estimates that more than half the seats can be considered as safe. It has been claimed that members involved in the 2009 expenses scandal were significantly more likely to hold a safe seat. However, other voting systems, notably the
party-list system A party-list system is a type of electoral system that formally involves political parties in the electoral process, usually to facilitate multi-winner elections. In party-list systems, parties put forward a list of candidates, the party-list who s ...
, can also create politicians who are relatively immune from electoral pressure (especially when using a closed-list).


Tactical voting

To a greater extent than many others, the first-past-the-post method encourages "tactical voting". Voters have an incentive to vote for a candidate who they predict is more likely to win, as opposed to their preferred candidate who may be unlikely to win and for whom a vote could be considered as
wasted Wasted may refer to: Arts, entertainment, and media Literature *'' Wasted: Tales of a GenX Drunk'', a 1997 memoir by Mark Judge *'' Wasted: A Memoir of Anorexia and Bulimia'', a 1998 autobiography by Marya Hornbacher *'' Wasted: A Childhood Sto ...
. The position is sometimes summarised, in an extreme form, as "all votes for anyone other than the runner-up are votes for the winner." This is because votes for these other candidates deny potential support from the second-placed candidate, who might otherwise have won. Following the extremely close 2000 U.S. presidential election, some supporters of Democratic candidate Al Gore believed one reason he lost to
Republican Republican can refer to: Political ideology * An advocate of a republic, a type of government that is not a monarchy or dictatorship, and is usually associated with the rule of law. ** Republicanism, the ideology in support of republics or agains ...
George W. Bush is that a portion of the electorate (2.7%) voted for Ralph Nader of the Green Party, and exit polls indicated that more of them would have preferred Gore (45%) to Bush (27%). This election was ultimately determined by the results from Florida, where Bush prevailed over Gore by a margin of only 537 votes (0.009%), which was far exceeded by the 97488 (1.635%) votes cast for Nader in that state. In Puerto Rico, there has been a tendency for Independentista voters to support Populares candidates. This phenomenon is responsible for some Popular victories, even though the Estadistas have the most voters on the island, and is so widely recognised that Puerto Ricans sometimes call the Independentistas who vote for the Populares "melons", because that fruit is green on the outside but red on the inside (in reference to the party colors). Because voters have to predict who the top two candidates will be, results can be significantly distorted: * Some voters will vote based on their view of how others will vote as well, changing their originally intended vote; * Substantial power is given to the media, because some voters will believe its assertions as to who the leading contenders are likely to be. Even voters who distrust the media will know that others ''do'' believe the media, and therefore those candidates who receive the most media attention will probably be the most popular; * A new candidate with no track record, who might otherwise be supported by the majority of voters, may be considered unlikely to be one of the top two, and thus lose votes to tactical voting; * The method may promote votes ''against'' as opposed to votes ''for''. For example, in the UK (and only in the
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 i ...
region), entire campaigns have been organised with the aim of voting ''against'' the Conservative Party by voting Labour,
Liberal Democrat Several political parties from around the world have been called the Liberal Democratic Party or Liberal Democrats. These parties usually follow a liberal democratic ideology. Active parties Former parties See also *Liberal democracy *Lib ...
in
England England is a country that is part of the United Kingdom. It shares land borders with Wales to its west and Scotland to its north. The Irish Sea lies northwest and the Celtic Sea to the southwest. It is separated from continental Europe b ...
and
Wales Wales ( cy, Cymru ) is a country that is part of the United Kingdom. It is bordered by England to the east, the Irish Sea to the north and west, the Celtic Sea to the south west and the Bristol Channel to the south. It had a population in ...
, and since 2015 the SNP in
Scotland Scotland (, ) is a Countries of the United Kingdom, country that is part of the United Kingdom. Covering the northern third of the island of Great Britain, mainland Scotland has a Anglo-Scottish border, border with England to the southeast ...
, depending on which is seen as best placed to win in each locality. Such behaviour is difficult to measure objectively. Proponents of other voting methods in single-member districts argue that these would reduce the need for tactical voting and reduce the spoiler effect. Examples include preferential voting systems, such as
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 U ...
, as well as the two-round system of runoffs and less tested methods such as approval voting and Condorcet methods.


Effect on political parties and society

Duverger's law is an idea in political science which says that constituencies that use first-past-the-post methods will lead to
two-party system A two-party system is a political party system in which two major political parties consistently dominate the political landscape. At any point in time, one of the two parties typically holds a majority in the legislature and is usually refe ...
s, given enough time. Economist
Jeffrey Sachs Jeffrey David Sachs () (born 5 November 1954) is an American economist, academic, public policy analyst, and former director of The Earth Institute at Columbia University, where he holds the title of University Professor. He is known for his work ...
explains: However, most countries with first-past-the-post elections have multiparty legislatures (albeit with two parties larger than the others), the United States being the major exception. There is a counter-argument to Duverger's Law, that while on the national level a plurality system may encourage two parties, in the individual constituencies supermajorities will lead to the vote fracturing. It has been suggested that the distortions in geographical representation provide incentives for parties to ignore the interests of areas in which they are too weak to stand much chance of gaining representation, leading to governments that do not govern in the national interest. Further, during election campaigns the campaigning activity of parties tends to focus on
marginal seat A marginal seat or swing seat is a constituency held with a small majority in a legislative election, generally one conducted under a single-winner voting system. In Canada, they may be known as target ridings. The opposite is a safe seat. The ...
s where there is a prospect of a change in representation, leaving safer areas excluded from participation in an active campaign. Political parties operate by targeting districts, directing their activists and policy proposals toward those areas considered to be marginal, where each additional vote has more value.


Smaller parties may reduce the success of the largest similar party

Under first-past-the-post, a small party may draw votes and seats away from a larger party that it is ''more'' similar to, and therefore give an advantage to one it is ''less'' similar to. For example, in the 2000 United States presidential election, the left-leaning Ralph Nader drew more votes from the left-leaning Al Gore than his opponent, leading to accusations that Nader was a "spoiler" for the Democrats.


Suppression of political diversity

According to the political pressure group Make Votes Matter, FPTP creates a powerful electoral incentive for large parties to target similar segments of voters with similar policies. The effect of this reduces political diversity in a country because the larger parties are incentivised to coalesce around similar policies. The
ACE Electoral Knowledge Network The ACE Electoral Knowledge Network is a web portal with information on elections designed to meet the needs of people working in the electoral field. Goals The goal of the ACE network is to provide knowledge to people working in the field el ...
describes India's use of FPTP as a "legacy of British colonialism".


May abet extreme politics

The Constitution Society published a report in April 2019 stating that, " n certain circumstancesFPTP can ... abet extreme politics, since should a radical faction gain control of one of the major political parties, FPTP works to preserve that party's position. ...This is because the psychological effect of the plurality system disincentivises a major party's supporters from voting for a minor party in protest at its policies, since to do so would likely only help the major party's main rival. Rather than curtailing extreme voices, FPTP today empowers the (relatively) extreme voices of the Labour and Conservative party memberships." Electoral reform campaigners have argued that the use of FPTP in
South Africa South Africa, officially the Republic of South Africa (RSA), is the Southern Africa, southernmost country in Africa. It is bounded to the south by of coastline that stretch along the Atlantic Ocean, South Atlantic and Indian Oceans; to the ...
was a contributory factor in the country adopting the
apartheid Apartheid (, especially South African English: , ; , "aparthood") was a system of institutionalised racial segregation that existed in South Africa and South West Africa (now Namibia) from 1948 to the early 1990s. Apartheid was ...
system after the 1948 general election in that country.


Likelihood of involvement in war

Leblang and Chan found that a country's electoral system is the most important predictor of a country's involvement in war, according to three different measures: (1) when a country was the first to enter a war; (2) when it joined a multinational coalition in an ongoing war; and (3) how long it stayed in a war after becoming a party to it. When the people are fairly represented in parliament, more of those groups who may object to any potential war have access to the political power necessary to prevent it. In a proportional democracy, war and other major decisions generally requires the consent of the majority. The British human rights campaigner
Peter Tatchell Peter Gary Tatchell (born 25 January 1952) is a British human rights campaigner, originally from Australia, best known for his work with LGBT social movements. Tatchell was selected as the Labour Party's parliamentary candidate for Bermondsey ...
, and others, have argued that Britain entered the Iraq War primarily because of the political effects of FPTP and that proportional representation would have prevented Britain's involvement in the war.


Manipulation


Gerrymandering

Because FPTP permits many
wasted vote In electoral systems, a wasted vote is any vote which is not for an elected candidate or, more broadly, a vote that does not help to elect a candidate. The narrower meaning includes ''lost votes'', being only those votes which are for a losing candi ...
s, an election under FPTP is more easily gerrymandered. Through
gerrymandering In representative democracies, gerrymandering (, originally ) is the political manipulation of electoral district boundaries with the intent to create undue advantage for a party, group, or socioeconomic class within the constituency. The m ...
, electoral areas are designed deliberately to unfairly increase the number of seats won by one party by redrawing the map such that one party has a small number of districts in which it has an overwhelming majority of votes (whether due to policy, demographics which tend to favour one party, or other reasons), and many districts where it is at a smaller disadvantage.


Manipulation charges

The presence of spoilers often gives rise to suspicions that manipulation of the slate has taken place. A spoiler may have received incentives to run. A spoiler may also drop out at the last moment, inducing charges that dropping out had been intended from the beginning.


Campaigns to replace FPTP

Many countries which use FPTP have active campaigns to switch to proportional representation (e.g. UK and Canada). Most modern democracies use forms of
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 ...
(PR). In the case of the UK, the campaign to scrap FPTP has been ongoing since at least the 1970s. However, in both these countries, reform campaigners face the obstacle of large incumbent parties who control the legislature and who are incentivised to resist any attempts to replace the FPTP system that elected them on a minority vote.


Voting method criteria

Scholars rate voting methods using mathematically derived voting method criteria, which describe desirable features of a method. No ranked preference method can meet all the criteria, because some of them are mutually exclusive, as shown by results such as
Arrow's impossibility theorem Arrow's impossibility theorem, the general possibility theorem or Arrow's paradox is an impossibility theorem in social choice theory that states that when voters have three or more distinct alternatives (options), no ranked voting electoral syst ...
and the Gibbard–Satterthwaite theorem.


FPTP as a single-winner system


FPTP used in single-member constituencies to elect assemblies (SMP)


Countries using FPTP/SMP


Heads of state elected by FPTP

* Angola * Bosnia and Herzegovina (one for each main ethnic group) *
Cameroon Cameroon (; french: Cameroun, ff, Kamerun), officially the Republic of Cameroon (french: République du Cameroun, links=no), is a country in west-central Africa. It is bordered by Nigeria to the west and north; Chad to the northeast; the C ...
*
Democratic Republic of the Congo The Democratic Republic of the Congo (french: République démocratique du Congo (RDC), colloquially "La RDC" ), informally Congo-Kinshasa, DR Congo, the DRC, the DROC, or the Congo, and formerly and also colloquially Zaire, is a country in ...
* Equatorial Guinea * The Gambia * Honduras *
Iceland Iceland ( is, Ísland; ) is a Nordic island country in the North Atlantic Ocean and in the Arctic Ocean. Iceland is the most sparsely populated country in Europe. Iceland's capital and largest city is Reykjavík, which (along with its s ...
* Kiribati * Malawi *
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 ...
* Nicaragua * Palestine *
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 Co ...
* Paraguay *
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 ...
* Rwanda *
Singapore Singapore (), officially the Republic of Singapore, is a sovereign island country and city-state in maritime Southeast Asia. It lies about one degree of latitude () north of the equator, off the southern tip of the Malay Peninsula, bor ...
*
South Korea South Korea, officially the Republic of Korea (ROK), is a country in East Asia, constituting the southern part of the Korean Peninsula and sharing a land border with North Korea. Its western border is formed by the Yellow Sea, while its eas ...
*
Republic of China (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 northeast ...
- constitutional amendment, from 1996 *
Tanzania Tanzania (; ), officially the United Republic of Tanzania ( sw, Jamhuri ya Muungano wa Tanzania), is a country in East Africa within the African Great Lakes region. It borders Uganda to the north; Kenya to the northeast; Comoro Islands ...
* Venezuela


Legislatures elected exclusively by FPTP/SMP

The following is a list of countries currently following the first-past-the-post voting system for their national legislatures. * Antigua and Barbuda *
Azerbaijan Azerbaijan (, ; az, Azərbaycan ), officially the Republic of Azerbaijan, , also sometimes officially called the Azerbaijan Republic is a transcontinental country located at the boundary of Eastern Europe and Western Asia. It is a part of t ...
* Bahamas * Bangladesh * Barbados *
Belarus Belarus,, , ; alternatively and formerly known as Byelorussia (from Russian ). officially the Republic of Belarus,; rus, Республика Беларусь, Respublika Belarus. is a landlocked country in Eastern Europe. It is bordered by ...
*
Belize Belize (; bzj, Bileez) is a Caribbean and Central American country on the northeastern coast of Central America. It is bordered by Mexico to the north, the Caribbean Sea to the east, and Guatemala to the west and south. It also shares a wate ...
* Bhutan (both houses) * Botswana *
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 ...
(for the lower house only) * Dominica *
Dominican Republic The Dominican Republic ( ; es, República Dominicana, ) is a country located on the island of Hispaniola in the Greater Antilles archipelago of the Caribbean region. It occupies the eastern five-eighths of the island, which it shares with ...
* Eritrea * Eswatini * Ethiopia * The Gambia *
Ghana Ghana (; tw, Gaana, ee, Gana), officially the Republic of Ghana, is a country in West Africa. It abuts the Gulf of Guinea and the Atlantic Ocean to the south, sharing borders with Ivory Coast in the west, Burkina Faso in the north, and To ...
* Grenada *
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 ...
(for the lower house only) *
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 ...
*
Kenya ) , national_anthem = " Ee Mungu Nguvu Yetu"() , image_map = , map_caption = , image_map2 = , capital = Nairobi , coordinates = , largest_city = Nairobi ...
* Liberia *
Malaysia Malaysia ( ; ) is a country in Southeast Asia. The federation, federal constitutional monarchy consists of States and federal territories of Malaysia, thirteen states and three federal territories, separated by the South China Sea into two r ...
* Malawi * Maldives * Micronesia * Myanmar (both houses) *
Nigeria Nigeria ( ), , ig, Naìjíríyà, yo, Nàìjíríà, pcm, Naijá , ff, Naajeeriya, kcg, Naijeriya officially the Federal Republic of Nigeria, is a country in West Africa. It is situated between the Sahel to the north and the Gulf o ...
(both houses) *
Palau Palau,, officially the Republic of Palau and historically ''Belau'', ''Palaos'' or ''Pelew'', is an island country and microstate in the western Pacific. The nation has approximately 340 islands and connects the western chain of the ...
(both houses) *
Poland Poland, officially the Republic of Poland, is a country in Central Europe. It is divided into 16 administrative provinces called voivodeships, covering an area of . Poland has a population of over 38 million and is the fifth-most populou ...
(for upper house only) *
Qatar Qatar (, ; ar, قطر, Qaṭar ; local vernacular pronunciation: ), officially the State of Qatar,) is a country in Western Asia. It occupies the Qatar Peninsula on the northeastern coast of the Arabian Peninsula in the Middle East; it ...
*
Saint Kitts and Nevis Saint Kitts and Nevis (), officially the Federation of Saint Christopher and Nevis, is an island country and microstate consisting of the two islands of Saint Kitts and Nevis, both located in the West Indies, in the Leeward Islands chain ...
* Saint Lucia * Saint Vincent and the Grenadines * Samoa * Sierra Leone *
Solomon Islands Solomon Islands is an island country consisting of six major islands and over 900 smaller islands in Oceania, to the east of Papua New Guinea and north-west of Vanuatu. It has a land area of , and a population of approx. 700,000. Its capit ...
* Tonga *
Trinidad and Tobago Trinidad and Tobago (, ), officially the Republic of Trinidad and Tobago, is the southernmost island country in the Caribbean. Consisting of the main islands Trinidad and Tobago, and numerous much smaller islands, it is situated south of ...
* Uganda *
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 European mainland, continental mainland. It comprises England, Scotlan ...
*
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 territori ...
(both houses) - see footnote *
Yemen Yemen (; ar, ٱلْيَمَن, al-Yaman), officially the Republic of Yemen,, ) is a country in Western Asia. It is situated on the southern end of the Arabian Peninsula, and borders Saudi Arabia to the Saudi Arabia–Yemen border, north and ...
* Zambia Subnational legislatures * Cook Islands (New Zealand) *
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 ...
* Bermuda * Cayman Islands * British Virgin Islands Footnote: Prior to the 2020 election, the US states of Alaska and
Maine Maine () is a state in the New England and Northeastern regions of the United States. It borders New Hampshire to the west, the Gulf of Maine to the southeast, and the Canadian provinces of New Brunswick and Quebec to the northeast and ...
completely abandoned FPTP in favor of ranked-choice voting or RCV. In the US, 48 of the 50 states and the District of Columbia use FPTP to choose the electors of the Electoral College (which in turn elects the president); Maine and
Nebraska Nebraska () is a state in the Midwestern region of the United States. It is bordered by South Dakota to the north; Iowa to the east and Missouri to the southeast, both across the Missouri River; Kansas to the south; Colorado to the sout ...
use a variation where the electoral vote of each congressional district is awarded by FPTP, and the statewide winner is awarded an additional two electoral votes. In states that employ FPTP, the presidential candidate gaining the greatest number of votes wins all the state's available electors (seats), regardless of the number or share of votes won, or the difference separating the leading candidate and the first runner-up.


Use of FPTP/SMP in mixed systems for electing legislatures

The following countries use FPTP/SMP to elect part of their national legislature, in different types of mixed systems. Alongside block voting (fully majoritarian systems) or as part of mixed-member majoritarian systems (semi-proportional representation) *
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 ...
– in the Federal Senate, alongside plurality block voting (alternating elections) * Cote d'Ivoire – in single-member electoral districts, alongside party block voting *
Iran Iran, officially the Islamic Republic of Iran, and also called Persia, is a country located in Western Asia. It is bordered by Iraq and Turkey to the west, by Azerbaijan and Armenia to the northwest, by the Caspian Sea and Turkmeni ...
– in single-member electoral districts for Khobregan, alongside plurality block voting * Marshall Islands – in single-member electoral districts, alongside plurality block voting * Oman – in single-member electoral districts, alongside plurality block voting * Pakistan – alongside seats distributed proportional to seats already won *
Singapore Singapore (), officially the Republic of Singapore, is a sovereign island country and city-state in maritime Southeast Asia. It lies about one degree of latitude () north of the equator, off the southern tip of the Malay Peninsula, bor ...
– in single-member electoral districts, alongside plurality block voting *
South Korea South Korea, officially the Republic of Korea (ROK), is a country in East Asia, constituting the southern part of the Korean Peninsula and sharing a land border with North Korea. Its western border is formed by the Yellow Sea, while its eas ...
– as part is a mixed system (AMS and parallel voting) *
Republic of China (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 northeast ...
– as part is a mixed system (parallel voting) As part of mixed-member proportional (MMP) or additional member systems (AMS) * Bolivia *
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 ...
* Lesotho *
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 ...
Subnational legislatures *
Scotland Scotland (, ) is a Countries of the United Kingdom, country that is part of the United Kingdom. Covering the northern third of the island of Great Britain, mainland Scotland has a Anglo-Scottish border, border with England to the southeast ...
(United Kingdom) *
Wales Wales ( cy, Cymru ) is a country that is part of the United Kingdom. It is bordered by England to the east, the Irish Sea to the north and west, the Celtic Sea to the south west and the Bristol Channel to the south. It had a population in ...
(United Kingdom) Local elections * Greater London (United Kingdom; not a legislature) * Certain municipalities in
South Africa South Africa, officially the Republic of South Africa (RSA), is the Southern Africa, southernmost country in Africa. It is bounded to the south by of coastline that stretch along the Atlantic Ocean, South Atlantic and Indian Oceans; to the ...


Former use

*
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 ...
(The Chamber of Deputies uses party list PR. Only twice used FPTP, first between 1902 and 1905 used only in the elections of 1904, and the second time between 1951 and 1957 used only in the elections of 1951 and 1954.) * Australia (replaced by IRV in 1918 for both the
House of Representatives House of Representatives is the name of legislative bodies in many countries and sub-national entitles. In many countries, the House of Representatives is the lower house of a bicameral legislature, with the corresponding upper house often c ...
and the Senate, with STV being introduced to the Senate in 1948) *
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 ...
(adopted in 1831, replaced by party list PR in 1899)— the Member of the European Parliament for the
German-speaking electoral college The German-speaking electoral college is one of three constituencies of the European Parliament in Belgium. It elects one MEP and is the only constituency to make use of first past the post. This is the European Parliament's smallest constitue ...
is still elected by FPTP * Cyprus (replaced by
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 ...
in 1981) *
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 = Kingdom of Denmark , establish ...
(replaced by
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 ...
in 1920) *
Hong Kong Hong Kong ( (US) or (UK); , ), officially the Hong Kong Special Administrative Region of the People's Republic of China (abbr. Hong Kong SAR or HKSAR), is a city and special administrative region of China on the eastern Pearl River Delta i ...
(adopted in 1995, replaced by party list PR in 1998) * Japan (replaced by parallel voting in
1993 File:1993 Events Collage.png, From left, clockwise: The Oslo I Accord is signed in an attempt to resolve the Israeli–Palestinian conflict; The Russian White House is shelled during the 1993 Russian constitutional crisis; Czechoslovakia is peacefu ...
) *
Lebanon Lebanon ( , ar, لُبْنَان, translit=lubnān, ), officially the Republic of Lebanon () or the Lebanese Republic, is a country in Western Asia. It is located between Syria to Lebanon–Syria border, the north and east and Israel to Blue ...
(replaced by
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 ...
in June 2017) * Lesotho (replaced by MMP Party list in 2002) *
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 ...
(replaced by STV in 1921) *
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 ...
(replaced by parallel voting in 1977) *
Nepal Nepal (; ne, :ne:नेपाल, नेपाल ), formerly the Federal Democratic Republic of Nepal ( ne, सङ्घीय लोकतान्त्रिक गणतन्त्र नेपाल ), is a landlocked country in S ...
(replaced by parallel voting) *
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 ...
(replaced by party list PR in 1917) *
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 ...
(replaced by MMP in 1996) * Papua New Guinea (replaced by IRV in 2002) *
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 ...
(replaced by parallel voting in 1998 for House of Representatives elections, and by multiple non-transferable vote in 1941 for Senate elections) *
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 ...
(replaced by party list PR) *
South Africa South Africa, officially the Republic of South Africa (RSA), is the Southern Africa, southernmost country in Africa. It is bounded to the south by of coastline that stretch along the Atlantic Ocean, South Atlantic and Indian Oceans; to the ...
(replaced by party list PR in 1994) *
Tanzania Tanzania (; ), officially the United Republic of Tanzania ( sw, Jamhuri ya Muungano wa Tanzania), is a country in East Africa within the African Great Lakes region. It borders Uganda to the north; Kenya to the northeast; Comoro Islands ...
(replaced by parallel voting in 1995)


See also

*
Cube rule The cube rule or cube law is an empirical observation regarding elections under the first-past-the-post system. The rule suggests that the party getting the most votes is over-represented (and conversely, the party getting the fewest votes is ...
* Deviation from proportionality *
Plurality-at-large voting Plurality block voting, also known as plurality-at-large voting, block vote or block voting (BV) is a non- proportional voting system for electing representatives in multi-winner elections. Each voter may cast as many votes as the number of sea ...
* Approval voting * Single non-transferable vote *
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 ...


References


External links


A handbook of Electoral System Design
fro
International IDEA

ACE Project: What is the electoral system for Chamber1 of the national legislature?


��detailed explanation of first-past-the-post voting
ACE Project: Electing a President using FPTP

ACE Project: FPTP on a grand scale in India

The Citizens' Assembly on Electoral Reform says the new proportional electoral system it proposes for British Columbia will improve the practice of democracy in the province.

Vote No to Proportional Representation BC


* ttp://www.game-point.net/misc/election2005/ The Problem With First-Past-The-Post Electing (data from UK general election 2005)*
The fatal flaws of First-past-the-post electoral systems
{{DEFAULTSORT:First-Past-The-Post Single-winner electoral systems