Nigerians will vote on Saturday in what could be their most credible and close electoral contest since military rule ended nearly a quarter of a century ago - and the first in which a presidential candidate who is not from one of the two main parties stands a chance.
Former Lagos governor Bola Tinubu of the ruling All Progressives Congress (APC) faces Atiku Abubakar of the main opposition Peoples Democratic Party (PDP) and Peter Obi, a wild- card candidate who defected from the PDP to the smaller Labour Party and now leads in at least five opinion polls.
