Venezuela's interim President Nicolas Maduro raises his fist as he holds up the official certificate declaring him winner of the presidential election at the Electoral Council in Caracas, Venezuela, Monday, April 15, 2013. Venezuela's government-friendly electoral council has quickly certified the razor-thin presidential victory of Hugo Chavez' hand-picked successor. Nicolas Maduro was elected by a margin of 50.8 percent to 49 percent over challenger Henrique Capriles. At right is Tibisay Lucena, the head of the electoral commission.(AP Photo/Ariana Cubillos)

Associated Press
Venezuela's interim President Nicolas Maduro raises his fist as he holds up the official certificate declaring him winner of the presidential election at the Electoral Council in Caracas, Venezuela, Monday, April 15, 2013. Venezuela's government-friendly electoral council has quickly certified the razor-thin presidential victory of Hugo Chavez' hand-picked successor. Nicolas Maduro was elected by a margin of 50.8 percent to 49 percent over challenger Henrique Capriles. At right is Tibisay Lucena, the head of the electoral commission.(AP Photo/Ariana Cubillos)
Venezuela's interim President Nicolas Maduro raises his fist as he holds up the official certificate declaring him winner of the presidential election at the Electoral Council in Caracas, Venezuela, Monday, April 15, 2013. Venezuela's government-friendly electoral council has quickly certified the razor-thin presidential victory of Hugo Chavez' hand-picked successor. Nicolas Maduro was elected by a margin of 50.8 percent to 49 percent over challenger Henrique Capriles. At right is Tibisay Lucena, the head of the electoral commission.(AP Photo/Ariana Cubillos)