Preliminary results show voters in Mexico have chosen to bring the country's once dominant political party back into power by electing Enrique Pena Nieto as their next president.
Enrique Pena Nieto, presidential candidate for the Revolutionary Institutional Party (PRI), left, speaks to supporters accompanied by his wife Angelica Rivera at the party's headquarters in Mexico City, early Monday, July 2, 2012.
Enrique Pena Nieto greets supporters after exit polls showed him in first place, in Mexico City, July 1, 2012.
Supporters of Enrique Pena Nieto celebrate at party headquarters as exit polls begin to come in, Mexico City, July 1, 2012.
Supporters of Enrique Pena Nieto celebrate at the PRI party headquarters as results begin to come in on the general elections in Mexico City, July 1, 2012.