A man walks past a campaign sign for Enrique Pena Nieto, of the opposition Institutional Revolutionary Party. Mexicans vote for their next president on Sunday. Esteban Felix/AP hide caption

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PRI candidate Enrique Pena Nieto campaigns in Mexico City. Pena Nieto is heavily favored in Mexico's presidential election on Sunday. He says his party, which has been out of power for 12 years after ruling for seven decades, has changed its ways. John Moore/Getty Images hide caption

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A man wearing a mask holds up a machete during a protest in May against a possible return of the old ruling Institutional Revolutionary Party in Mexico City. Eduardo Verdugo/AP hide caption

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Chef Javier Plascencia finds inspiration for his dishes at the Mercado Hidalgo, a huge indoor market in Tijuana Melanie Stetson Freeman/Christian Science Monitor/Getty Images hide caption

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Dreamworks Animation CEO Jeffrey Katzenberg, shown at CinemaCon 2012, has donated $2 million to the pro-Obama superPAC Priorities USA Action. Chris Pizzello/AP hide caption

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Fullerton police officer Manuel Ramos at the preliminary hearing in the death of Kelly Thomas, a mentally ill homeless man. Ramos and fellow officer Jay Cicinelli will stand trial for Thomas' death. Getty Images hide caption

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Smoke rises as fires burn out of control near Vermont Street in Los Angeles on April 30, 1992. Riots erupted after L.A. police officers were acquitted in the beating of black motorist Rodney King. Paul Sakuma/AP hide caption

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Los Angeles police form a line to keep a crowd from entering a building on April 30, 1992. Twenty years after the L.A. riots, most civil rights and community groups give the LAPD high marks for progress. Nick Ut/AP hide caption

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Bill Maher, shown here at a 2011 event in Los Angeles, gave $1 million to the superPAC supporting President Obama's re-election bid. Chris Pizzello/AP hide caption

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