Andres Manuel Lopez Obrador, presidential candidate for the Democratic Revolution Party (PRD), left, attends a news conference in Mexico City, Friday, July 20, 2012. Lopez Obrador claims that winning ... more 
Andres Manuel Lopez Obrador, presidential candidate for the Democratic Revolution Party (PRD), left, attends a news conference in Mexico City, Friday, July 20, 2012. Lopez Obrador claims that winning candidate of Mexico’s presidential election, Enrique Pena Nieto engaged in overspending and vote buying. (AP Photo/Alexandre Meneghini) less 
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Associated Press | Photo By Alexandre Meneghini
Fri, Jul 20, 2012 1:33 PM EDT