MEXICO CITY (AP) - Mexico's federal elections institute's preliminary count says Enrique Pena Nieto has won the presidency.
The candidate for the old-ruling Institutional Revolutionary Party, or PRI, has won about 38 percent of the vote according a representative count of the ballots.
Leftist candidate Andres Manuel Lopez Obrador won about 31 percent. Ruling party conservative candidate Josefina Vazquez Mota won 25 percent.
Lopez Obrador says he won't concede the presidency despite an official preliminary count that shows him losing to former ruling party candidate Enrique Pena Nieto.
Lopez Obrador told his supporters that he would wait for a full count, and would act responsibly.
In 2006, Lopez Obrador took hundreds of thousands of supporters to Mexico City's streets when he narrowly lost the presidential election. It was feared he would try the same in this election and not accept the results.
Pena Nieto's victory paves the way for Mexico's old Institutional Revolutionary Party, which ruled for 71 years, to return to the presidency for the first time since being voted out in 2000.
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