Mexico vote protests cripple capital Wed Aug 2, 2006 12:38am ET MEXICO CITY (Reuters) - Street protests led by the leftist candidate in Mexico's presidential election plunged the capital into chaos for a second day on Tuesday, raising fears of a long and increasingly nasty fight over vote fraud claims. The mass demonstrations called by Andres Manuel Lopez Obrador to protest alleged vote-rigging in his close defeat by conservative rival Felipe Calderon have turned Mexico City's swanky business district into a sprawling campsite. On Tuesday evening the leftist asked supporters to remain peaceful but keep the protest camps going. "We are not here because we want to be, it's because we need to be, because we want there to be democracy," he said in the Zocalo square, where hundreds were camped out.