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A demonstrator holds an image depicting Mexico's President-elect Enrique Pena Nieto, of the Institutional Revolutionary Party (PRI), that reads in Spanish "Authoritarian pig" during a protest against the official presidential election results in Mexico City, Friday, Aug. 31, 2012. On Friday, the Federal Electoral Tribunal declared Pena Nieto won the majority of votes in last July's presidential election, and he will be sworn-in on Dec. 1. (AP Photo/Alexandre Meneghini)

A demonstrator holds an image depicting Mexico's President-elect Enrique Pena Nieto, of the Institutional Revolutionary Party (PRI), that reads in Spanish "Authoritarian pig" during a protest against the official presidential election results in Mexico City, Friday, Aug. 31, 2012. On Friday, the Federal Electoral Tribunal declared Pena Nieto won the majority of votes in last July's presidential election, and he will be sworn-in on Dec. 1. (AP Photo/Alexandre Meneghini)

Pena Nieto declared winner in Mexico

Mexico's highest electoral authority declared Friday, August 31, that Enrique Pena Nieto

was the legitimate winner of the July 1 presidential election, formally

opening the transition to a new government despite continuing claims of

fraud by the left's second-place finisher.