Congress of the Union

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General Congress of the United Mexican States Congreso General de los Estados Unidos Mexicanos
LXVI Legislature
Type
Type	Bicameral
Houses	Senate of the Republic Chamber of Deputies
History
Founded	28 September 1821 (1821-09-28)
Leadership
President of the Senate	Gerardo Fernández Noroña (MORENA) since 1 September 2024 (2024-09-01)
President of the Chamber of Deputies	Sergio Gutiérrez Luna (MORENA) since 8 October 2024 (2024-10-08)
Structure
Seats	628 (500 Deputies) (128 Senators)
Senate political groups	Government (86)   MORENA (62)   PVEM (14)   PT (9)   IND (1) Opposition (42)   PAN (21)   PRI (15)   MC (5)   IND (1)
Chamber of Deputies political groups	Government (364)   MORENA (253)   PVEM (62)   PT (49) Opposition (136)   PAN (71)   PRI (37)   MC (27)   Independent (1)
Authority	Title III, Chapter II of the Political Constitution of the United Mexican States
Salary	$119,770 pesos (Senator) $99,071 pesos (Deputy)
Elections
Last Senate election	2 June 2024 (2024-06-02)
Last Chamber of Deputies election	2 June 2024 (2024-06-02)
Next Senate election	2 June 2030 (2030-06-02)
Next Chamber of Deputies election	6 June 2027 (2027-06-06)
Motto
La Patria Es Primero (The Fatherland Is First)
Meeting place
Senate Building Mexico City
San Lázaro Building Mexico City
Website
Senate website Chamber of Deputies website
Constitution
Mexican Constitution of 1917
Rules
"Organic Law of the General Congress of the United Mexican States" (Spanish) Rules for the Interior Government of the General Congress of the United Mexican States" (Spanish)

The Congress of the Union (Spanish: Congreso de la Unión, pronounced [koŋˈɡɾeso ðe lawˈnjon]), 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. It consists of two chambers: the Senate of the Republic and the Chamber of Deputies. Its 628 members (128 senators and 500 deputies) meet in Mexico City.