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 . The candidate has been accused by his opponents and some members of Congress that he was cheated out of victory last year, but he denies it. Back then , Lopez Obrador called himself `` the legitimate president of Mexico , '' and his supporters protested nationwide . 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 .
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 . The candidate has been accused by his opponents and some members of Congress that he was cheated out of victory last year, but he denies it. 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 .