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The Congress of the Union ( es, Congreso de la Unión, ), formally known as the General Congress of the United Mexican States (''Congreso General de los Estados Unidos Mexicanos''), is the legislature of the
federal government of Mexico The Federal government of Mexico (alternately known as the Government of the Republic or ' or ') is the national government of the Mexico, United Mexican States, the central government established by its constitution to share sovereignty over the ...
consisting of two chambers: the Senate of the Republic and the
Chamber of Deputies The chamber of deputies is the lower house in many bicameral legislatures and the sole house in some unicameral legislatures. Description Historically, French Chamber of Deputies was the lower house of the French Parliament during the Bourbon R ...
. Its 628 members (128 senators and 500 deputies) meet in
Mexico City Mexico City ( es, link=no, Ciudad de México, ; abbr.: CDMX; Nahuatl: ''Altepetl Mexico'') is the capital and largest city of Mexico, and the most populous city in North America. One of the world's alpha cities, it is located in the Valley o ...
.


Structure

The Congress is a
bicameral Bicameralism is a type of legislature, one divided into two separate assemblies, chambers, or houses, known as a bicameral legislature. Bicameralism is distinguished from unicameralism, in which all members deliberate and vote as a single grou ...
body, consisting of two chambers: The Senate of the Republic and the
Chamber of Deputies The chamber of deputies is the lower house in many bicameral legislatures and the sole house in some unicameral legislatures. Description Historically, French Chamber of Deputies was the lower house of the French Parliament during the Bourbon R ...
. Its structure and responsibilities are defined in the Third Title, Second Chapter, Articles 50 to 79 of the 1917 Constitution. The
upper chamber An upper house is one of two chambers of a bicameral legislature, the other chamber being the lower house.''Bicameralism'' (1997) by George Tsebelis The house formally designated as the upper house is usually smaller and often has more restri ...
is the Senate, ''"Cámara de Senadores"'' or ''"Senado"''. It comprises 128 seats, 96 members are elected by
plurality vote 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 per ...
, with 3 members being elected in each State; the other 32 members are elected 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 a single country-wide constituency. The
lower house A lower house is one of two Debate chamber, chambers of a Bicameralism, bicameral legislature, the other chamber being the upper house. Despite its official position "below" the upper house, in many legislatures worldwide, the lower house has co ...
is the Chamber of Deputies, or ''"Cámara de Diputados"''. It has 500 seats; 300 members are elected by plurality vote and the other 200 members are elected according to proportional representation, through a system of regional lists (one for each of the 5 constituencies established for the election by law).


Elections

The Congress of the Union (''Congreso de la Unión'') has two chambers. The
Chamber of Deputies The chamber of deputies is the lower house in many bicameral legislatures and the sole house in some unicameral legislatures. Description Historically, French Chamber of Deputies was the lower house of the French Parliament during the Bourbon R ...
''(Cámara de Diputados)'' has 500 members, each elected for a three-year term, 300 of whom are elected in single-seat
constituencies An electoral district, also known as an election district, legislative district, voting district, constituency, riding, ward, division, or (election) precinct is a subdivision of a larger state (a country, administrative region, or other polity ...
by plurality, with the remaining 200 members elected 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 5 multi-state, 40-seat
constituencies An electoral district, also known as an election district, legislative district, voting district, constituency, riding, ward, division, or (election) precinct is a subdivision of a larger state (a country, administrative region, or other polity ...
. The 200 PR-seats are distributed generally without taking account the 300 plurality-seats (
parallel voting Parallel voting is a type of mixed electoral system in which representatives are voted into a single chamber using two or more different systems, most often first-past-the-post voting (FPTP) with party-list proportional representation (PR). It is ...
), but since 1996 a party cannot get more seats overall than 8% above its result for the PR-seats (a party must win 42% of the votes for the PR-seats to achieve an overall majority). There are two exceptions to that rule. A party can lose only PR-seats by that rule (not plurality-seats). Also, a party cannot get more than 300 seats overall (even if it has more than 52% of the votes for the PR-seats). The Chamber of Senators ''(Cámara de Senadores)'' has 128 members, elected for a six-year term, 96 of them in three-seat
constituencies An electoral district, also known as an election district, legislative district, voting district, constituency, riding, ward, division, or (election) precinct is a subdivision of a larger state (a country, administrative region, or other polity ...
(corresponding to the nation's 31 states and
Mexico City Mexico City ( es, link=no, Ciudad de México, ; abbr.: CDMX; Nahuatl: ''Altepetl Mexico'') is the capital and largest city of Mexico, and the most populous city in North America. One of the world's alpha cities, it is located in the Valley o ...
) and 32 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 ...
on a nationwide basis. In the state
constituencies An electoral district, also known as an election district, legislative district, voting district, constituency, riding, ward, division, or (election) precinct is a subdivision of a larger state (a country, administrative region, or other polity ...
, two seats are awarded to the plurality winner and one to the first runner-up.


Powers

The powers allocated in the Congress are defined in article 73 of the Constitution. Among its powers, the Congress can admit new States into the Union, alter the allocation of powers granted to the federal government, lay and collect taxes, declare war (upon request of the Government), provide for and maintain the Union's armed forces, and coordinate economic activities. Article 74, 75 and 76 of the Constitution state that each Chamber can address specific matters. In fact, some powers are reserved either to the Chamber of Deputies or to the Chamber of Senators, making the Congress of the union an imperfect bicameralism. For example, the former can approve the federal budget submitted by the Government, while the latter has the power to analyze the foreign policy of the Government, approve or dismiss the Presidential nominations of the Attorney General, Supreme Court Justices, diplomatic agents, general consuls, and senior civil and military officials.


Permanent Committee

The "'", translated variously as the Permanent Committee or Standing Committee, is a body of 19 deputies and 18 senators that is responsible for tasks relating to the Congress when it is in recess.


Term

It is conventional to refer to each
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 ...
by the
Roman numeral Roman numerals are a numeral system that originated in ancient Rome and remained the usual way of writing numbers throughout Europe well into the Late Middle Ages. Numbers are written with combinations of letters from the Latin alphabet, ea ...
of its term. Thus, the current Congress (whose term lasts from 2021 to 2024) is known as the " LXV Legislature"; the previous Congress (whose term lasted from 2018 to 2021) was the " LXIV Legislature", and so forth. The I Legislature of Congress was the one that met right after the Constituent Congress that enacted the
1857 Constitution The Federal Constitution of the United Mexican States of 1857 ( es, Constitución Federal de los Estados Unidos Mexicanos de 1857), often called simply the Constitution of 1857, was the liberal constitution promulgated in 1857 by Constituent Cong ...
. Early in the 20th century, the revolutionary leader
Francisco I. Madero Francisco Ignacio Madero González (; 30 October 1873 – 22 February 1913) was a Mexican businessman, revolutionary, writer and statesman, who became the 37th president of Mexico from 1911 until he was deposed in a coup d'etat in February 1 ...
popularized the slogan ''Sufragio Efectivo – no Reelección'' ("Effective suffrage, no reelection"). In keeping with that long-held principle, and until 2014, the 1917 Constitution stated that "Deputies and Senators could not be reelected for the next immediate term".


Reelection

On February 10, 2014, the Mexican Constitution was amended to allow reelection to the legislative bodies for the first time. Starting with the general election of 2018, deputies and senators are allowed to run for reelection. Members of the Chamber of Deputies may serve up to four terms of three years each while members of the Senate may serve two terms of six years each; in total, members of both houses will be allowed to remain in office for a total of 12 years.


Last election


Senate

Of the 53 seats won by the MORENA-PT–PES alliance, 40 were taken by MORENA, 8 by the PES, and 5 by the PT Of the 25 seats won by the PAN–PRD–MC alliance, 16 were taken by the PAN, 6 by the PRD, and 3 by the MC Of the 13 seats won by the PRI–PVEM–PNA alliance, 7 were taken by the PRI, 5 by the PVEM, and 1 by the PNA


Chamber of Deputies

Of the 210 seats won by the MORENA-PT–PES alliance, 97 were taken by MORENA, 57 by the PT, and 56 by the PES Of the 63 seats won by the PAN–PRD–MC alliance, 37 were taken by the PAN, 17 by the MC, and 9 by the PRD Of the 13 seats won by the PRI–PVEM–PNA alliance, 6 were taken by the PRI, 5 by the PVEM, and 2 by the PNA


See also

*
Chamber of Deputies (Mexico) The Chamber of Deputies (Spanish: ''Cámara de Diputados'', ) is the lower house of the Congress of the Union, the bicameral parliament of Mexico. The other chamber is the Senate. The structure and responsibilities of both chambers of Congre ...
*
Senate (Mexico) The Senate of the Republic, ( es, Senado de la República) constitutionally Chamber of Senators of the Honorable Congress of the Union ( es, Cámara de Senadores del H. Congreso de la Unión), is the upper house of Mexico's bicameral Congres ...
*
Politics of Mexico The politics of Mexico take place in a framework of a federal presidential representative democratic republic whose government is based on a congressional system, whereby the President of Mexico is both head of state and head of government, a ...
*
List of legislatures by country This is a list of legislatures by country. A "legislature" is the generic name for the national parliaments and congresses that act as a plenary general assembly of representatives and that have the power to legislate. All entities included i ...
*
History of democracy in Mexico The history of democracy in Mexico dates to the establishment of the federal republic of Mexico in 1824. After a long history under the Spanish Empire (1521–1821), Mexico gained its independence in 1821 and became the First Mexican Empire l ...


References


External links


Chamber of DeputiesSenate
{{DEFAULTSORT:Congress Of Mexico Mexico, Congress of
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 ...
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 ...