This page provides key dates in the lead-up to the 2012 presidential election:
Jan. 30, 2011: Guerrero state election (see the results and analysis)
Feb. 6, 2011: Baja California Sur state election (see the results and analysis)
July 3, 2011: State of Mexico, Coahuila, and Nayarit state elections (see the results and analysis)
October 2011: Internal election process begins within each party
Nov. 13, 2011: Michoacán state election (see the results and analysis)
Nov. 16, 2011: The PRD selects Andrés Manuel López Obrador as its presidential candidate after an internal poll (see this analysis for details on the contentious process, under the “The PRD”)
Nov. 21, 2011: Enrique Peña Nieto formally registers for the PRI nomination, after his lone contender, Manlio Fabio Beltrones, drops out of the race (see this analysis, under “The PRI”)
Feb. 5, 2012: Josefina Vázquez Mona wins the PAN’s closed primary election with 55 percent of the vote (see the results and analysis)
Feb. 16, 2012: “Blackout period” in the campaign begins (see rules and analysis of this period)
March 30, 2012: Campaign reopens
May 6, 2012: First scheduled debate between presidential candidates
June 10, 2012: Second scheduled debate between presidential candidates
June 27, 2012: Campaign ends
July 1, 2012: Presidential election
