Voting day was postponed after the Nigerian military said they could not provide security for the elections due to the ongoing offensive against Boko Haram in the north . Nigeria 's presidential candidates fight for voters on all media -- except live presidential debates . Major issues many candidates want addressed include : security , the environment , water and electricity . Presidential candidate Muhammadu Buhari blamed government for military setbacks against Boko Haram .
Nigeria 's presidential candidates fight for voters on all media -- except live presidential debates . Major issues many candidates want addressed include : security , the environment , water and electricity . Presidential candidate Muhammadu Buhari blamed government for military setbacks against Boko Haram .