Mexico City ? Protesters started marching from mountain towns and sprawling industrial cities to the nation’s capital Wednesday to protest official election results showing conservative Felipe Calderon as the winner of the July 2 presidential election.

Supporters of leftist presidential candidate Andres Manuel Lopez Obrador were gathering outside each of the country’s 300 electoral districts before heading to Mexico City, where a mass rally is planned for Sunday to denounce official results.

Lopez Obrador has filed legal appeals challenging the nearly 244,000-vote advantage Calderon had after an official tally of the more than 41 million votes cast. His party has submitted dozens of boxes stuffed with videos, campaign propaganda and other alleged proof of election misconduct.