At stake in this election:

• 128 seats in the Senate (Camara de Senadores)

Description of government structure:

• Chief of State: President Vicente FOX Quesada *
• Head of Government: President Vicente FOX Quesada
• Assembly: Mexico has a bicameral National Congress (Congreso de la Union) consisting of the Senate (Camara de Senadores) with 128 seats and the Chamber of Deputies (Camara de Diputados) with 500 seats.

* The president is both the chief of state and head of government.

Description of electoral system:

• The President is elected by plurality vote to serve a 6-year term.
• In the Senate (Camara de Senadores), 96 members are elected by plurality vote in multi-member constituencies to serve 6-year terms and 32 members are elected through a party-list proportional representation system to serve 6-year terms*. In the Chamber of Deputies (Camara de Diputados), 300 members are elected by simple majority vote in single-member constituencies to serve 3-year terms and 200 members are elected through a party-list proportional representation system to serve 3-year terms.

* The 96 senators are elected in 32 three-seat districts. In each of Mexico

Main Parties in the election:

• National Action Party/Partido Accion Nacional
• Institutional Revolutionary Party/Partido Revolucionario Instituccional
• Party of the Democratic Revolution/Partido de la Revolucion Democratica
• New Alliance Party/Partido Nueva Alianza
• Social Democratic and Peasant Alternative/Alternativa Socialdemocrata y Campesina 

Population and Registered Voters:

• Population: 111,382,857 (2006)
• Registered voters: 71,351,585 (2006)

Gender Data:

·         Female Population: 56,025,292 (2006)

·         Is Mexico a signatory to CEDAW: Yes (17 July 1980)

·         Has Mexico ratified CEDAW: Yes (23 March 1981)

·         Gender Quota: Yes 

·         Female candidates in this election: No

·         Number of Female Parliamentarians: 113 (Chamber of Deputies); 22 (Senate) (following the 2006 elections)

·         Human Development Index Position: 74 (2014)

·         Social Institutions and Gender Index (SIGI) Categorization: N/A

Disability Data:

·         Is Mexico a signatory to CRPD: Yes (30 March 2007)

·         Has Mexico ratified CRPD: Yes (17 December 2007)

·         Population with a disability: 16,707,428 (est.)