Andres Manuel Lopez III is refusing to concede in the presidential election . He says he is filing a legal complaint because of allegations of vote - rigging . Election officials : Enrique Peña Nieto won 68 % of the vote , to Lopez III 's 31.59 % . The results remain unofficial until the country 's electoral tribunal ratifies them .
Andres Manuel Lopez Obrador is refusing to concede in the presidential election . He says he is filing a legal challenge because of allegations of vote-rigging . Election officials : Enrique Pena Nieto won 38.21 % of the votes , to Lopez Obrador 's 31.59 % . The results remain unofficial until the country 's electoral tribunal ratifies them .