MONTERREY, MEXICO - JUNE 27: Enrique Pena Nieto, presidential candidate for the Institutional Revolutionary Party (PRI) and his wife Angelica Rivera de Pena, gather with supporters during his final campaign rally on June 27, 2012 in Monterrey City in Mexico's state of Nuevo Leon. Pena Nieto leads the polls going into the July 1 presidential election. If he wins, the PRI will return to power twelve years after losing the presidency to the ruling National Action Party (PAN), in 2000. (Photo by Daniel Aguilar/Getty Images)
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