Supporters of the Nigeria's opposition party People's Democratic Party (PDP) presidential candidate Atiku Abubakar attend a campaign rally at the Ribadu Square, in Jimeta, Adamawa State, on February 14, 2019. - Nigerians will cast 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)