People's Democratic Party (PDP) supporters gather in Lagos' Tafawa Balewa Square where the official opposition PDP party is holding a rally, on February 12, 2019. - Nigerians will cast their ballots on February 16 in presidential and legislative elections. The presidential contest will see incumbent Muhammadu Buhari seek to win a second four-year term against former vice president Atiku Abubakar in what is expected to be a close race. (Photo by Luis TATO / AFP)