Venezuelan acting President Nicolas Maduro raises his fist during a campaign rally in San Carlos, Cojedes State, on April 4, 2013. The presidential campaign to replace Venezuela’s Hugo Chavez formally kicked off Tuesday, with Maduro — Chavez’s hand-picked successor — battling opposition leader Henrique Capriles for the forthcoming April 14 vote. AFP PHOTO / JUAN BARRETOJUAN BARRETO/AFP/Getty Images