A general election was held in Mexico on Sunday, July 1, 2012. Voters went to the polls to elect, on the federal level:

• A new President of the Republic to serve a six-year term, replacing then President Felipe Calderón. The current Constitution of Mexico prohibits any type of presidential re-election.
• 500 members (300 by the first-past-the-post system and 200 by proportional representation) to serve for a three-year term in the Chamber of Deputies.
• 128 members (three per state by first-past-the-post and 32 by proportional representation from national party lists) to serve six-year terms in the Mexican Senate. In each state, two first-past-the-post seats are allocated to the party with the largest share of the vote, and the remaining seat is given to the first runner-up.