2027 Mexican legislative election

2027 Mexican legislative election
6 June 2027
All 500 seats in the Chamber of Deputies
251 seats needed for a majority
Party Leader Last election
MORENA Luisa María Alcalde Luján 236
PVEM Karen Castrejón Trujillo 77
PAN Jorge Romero Herrera 72
PT Alberto Anaya 51
PRI Alejandro Moreno Cárdenas 35
MC Jorge Máynez 27

Legislative elections are scheduled to be held in Mexico on 6 June 2027. Voters will elect all 500 members of the Chamber of Deputies, who will serve during the LXVII Legislature (2027–2030). These elections will take place concurrently with the 2027 state elections.

Background

Political background

In the 2024 election, Sigamos Haciendo Historia, a coalition that included the National Regeneration Movement (Morena), the Ecologist Green Party of Mexico (PVEM), and the Labor Party (PT), won a majority of seats in Congress. The coalition obtained approximately 73% of the seats in the Chamber of Deputies, winning 256 of the 300 single-member districts and 108 seats through proportional representation, thereby achieving a supermajority in the lower house.[1] In the Senate, the coalition initially fell three seats short of a supermajority; however, subsequent defections allowed it to reach that threshold.[2] This marked the first time since the LIII Legislature that a governing party or coalition held a supermajority in both chambers of Congress.[3]

Following the inauguration of the LXVI Legislature, the ruling coalition used its supermajority to advance a package of constitutional amendments known as "Plan C", originally proposed by former president Andrés Manuel López Obrador and which President Claudia Sheinbaum campaigned on passing during the 2024 presidential election.[4][5][6] The coalition frequently employed expedited or "fast-track" legislative procedures, limiting extended committee deliberation and accelerating the approval process.[6] The coalition’s control of more than two-thirds of each chamber also left the opposition unable to initiate constitutional challenges, as an Action of Unconstitutionality requires the support of at least 33% of the members of a legislative chamber to be filed.[7][8] As a result, the coalition was able to approve controversial constitutional reforms along party-line votes, including the 2024 judicial reform, the transfer of the National Guard to military control, the adoption of the constitutional supremacy clause, and the dissolution of several autonomous constitutional bodies.

Electoral system

The National Electoral Institute (INE) oversees federal elections in Mexico. Its responsibilities include organizing election day logistics, producing and distributing electoral materials, counting votes, and certifying the election results.

The 500 members of the Chamber of Deputies are elected in two ways: 300 are elected in single-member constituencies by plurality vote, and the remaining 200 are elected by proportional representation in five multi-member districts, with seats divided according to Hamilton's method. No political party may hold more than 300 seats in total, and proportional representation seats may not be allocated in a manner that results in a party exceeding its national vote share by more than eight percentage points.[9][10] Deputies are elected for three-year terms and will serve in the 67th Congress.

Political parties and coalitions

See also: List of political parties in Mexico

Six national political parties are registered with the INE and are eligible to participate in the federal elections: the National Action Party (PAN), the Institutional Revolutionary Party (PRI), the Labor Party (PT), the Ecologist Green Party of Mexico (PVEM), Citizens' Movement (MC), and the National Regeneration Movement (Morena).

The General Law of Political Parties stipulates that national political parties can form coalitions for elections by submitting a coalition agreement to the electoral authority. Parties cannot join coalitions in their first election.

Summary

Party or alliance Leader Position Status
National Regeneration Movement Luisa María Alcalde Luján Centre-left to left-wing Government
Ecologist Green Party of Mexico Karen Castrejón Trujillo Centre-left
Labor Party Alberto Anaya Left-wing
National Action Party Jorge Romero Herrera Centre-right to right-wing Opposition
Institutional Revolutionary Party Alejandro Moreno Cárdenas Centre or big tent
Citizens' Movement Jorge Máynez Centre to centre-left

Creation of new parties

In January 2025, the registration period opened for political organizations seeking recognition as national political parties, during which 89 organizations formally registered their intent to do so.[11] To obtain official party status, these groups were required to affiliate at least 0.26% of the national electoral roll, 256,030 registered voters, by 28 February 2026,[12] and to hold either 20 statewide assemblies, each with a minimum attendance of 3,000 participants, or 200 district-level assemblies with at least 300 participants each, by 15 February 2026,[13] in accordance with electoral law.[11][14]

Opinion polls

Main article: Opinion polling for the 2027 Mexican legislative election

References

  1. ^ "INE da a Sheinbaum el mayor poder en Diputados desde 1982". Forbes México (in Spanish). 2024-08-23. Retrieved 2026-01-10.
  2. ^ "Morena logra "supermayoría" en el Senado con la adhesión de Cynthia López Castro". Brújula Política (in Spanish). 2024-11-12. Retrieved 2026-01-10.
  3. ^ Del Carmen Nava Polina, María; Weldon, Jeffrey; Yáñez López, Jorge. "Cambio político, presidencialismo y producción legislativa en la Cámara de Diputados: 1988-1998" (PDF). Retrieved 2025-01-25.
  4. ^ Alín, Paola (2024-06-05). "Las claves para entender el Plan C de López Obrador". El País México (in Spanish). Retrieved 2026-01-16.
  5. ^ Tinoco, Omar (2025-01-01). "Plan C de AMLO marcará la agenda del Congreso en 2025". infobae (in Spanish). Retrieved 2026-01-16.
  6. ^ a b Chávez, Víctor (2024-12-26). "Morena aprobó 16 reformas de AMLO y Sheinbaum... y pospusieron 341 en Cámara de Diputados". El Financiero (in Spanish). Retrieved 2026-01-16.
  7. ^ Romina Gándara, Sugeyry (2024-09-12). "El PRIAN no tiene los legisladores necesarios para una acción de inconstitucionalidad | SinEmbargo MX". SinEmbargo MX (in Spanish). Retrieved 2026-01-16.
  8. ^ Jiménez, Elia Castillo (2024-09-12). "La reforma judicial hiere de muerte a la oposición". El País México (in Spanish). Retrieved 2026-01-16.
  9. ^ "The Mexican Electoral System". Instituto Nacional Electoral. 22 April 2017. Archived from the original on 8 September 2023. Retrieved 8 September 2023.
  10. ^ "Constitution, Arts. 52 et seq" (PDF). Archived (PDF) from the original on 8 September 2023. Retrieved 8 September 2023.
  11. ^ a b García, Andrés (2025-02-03). "INE registra 89 organizaciones que buscan convertirse en partidos políticos". infobae (in Spanish). Retrieved 2026-01-10.
  12. ^ "Reporte preliminar de afiliaciones recabadas por las organizaciones de la ciudadanía en proceso de constitución como PPN" (PDF). Instituto Nacional Electoral (in Spanish). 2026-02-28. Retrieved 2026-03-06.
  13. ^ "Proceso de constitución de partidos políticos nacionales | Estatus de la celebración de asambleas" (PDF). Instituto Nacional Electoral (in Spanish). 2026-02-15. Retrieved 2026-03-06.
  14. ^ García, Aura (2025-12-27). "Sólo dos organizaciones cumplen con asambleas". El Sol de México (in Spanish). Retrieved 2026-01-10.
This article is issued from Wikipedia. The text is available under Creative Commons Attribution-Share Alike 4.0 unless otherwise noted. Additional terms may apply for the media files.