Gabon set for key polls

Gabon goes to the polls Sunday to elect a successor to Africa’s longest serving ruler Omar Bongo, whose son appears to be the frontrunner in the oil-rich country's presidential race. As campaigning wound down Saturday, Ali Bongo, 50, seemed to have a distinct advantage over a divided opposition, with the backing of the ruling Gabonese Democratic Party and a huge campaign war chest. Duration: 00:32