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Chronicling the history of Mexico's PRI political party

Sunday in Mexico, voters will choose their next president, and he could be a lot like the old presidents. Enrique Peña Nieto has a double-digit lead over his rivals. He's a member of the PRI party, which ruled Mexico for 70 years before being thrown out 12 years ago. At the time, that outster was seen as a victory for democracy because the PRI's power and corruption went unchecked for decades.