Nigerians are gearing up to choose a successor to President Muhammadu Buhari, whose eight years in power have been blighted by economic decay, soaring unemployment, heightened insecurity and an exodus of the educated elite. The Feb. 25 vote in Africa’s most populous nation pits long-familiar politicians in their 70s against a challenger from a fringe opposition party who held a hefty lead in early polls. The election has sparked unprecedented interest among young Nigerians tired of being ruled b
