The runner-up in Mexico’s presidential election announced Thursday that he will officially challenge the contest's results in court after alleging that the results were manipulated by vote-buying.

Andrés Manuel López Obrador of Mexico’s progressive alliance, which includes the Party of the Democratic Revolution and the Labor Party, finished second to the Institutional Revolutionary Party’s Enrique Peña Nieto after the July 1 election. López Obrador has accused the PRI of buying at least 5 million votes. Peña Nieto was declared the winner by about 3.3 million votes, according to Mexico’s ...

Full Story