Incumbent Goodluck Jonathan is the front-runner . His main challenger , Buhari , is a former military ruler and was a contestant in the 2003 and 2007 elections . The election will be held on May 29. The voting was largely peaceful . Official results could be announced as early as Monday .
Incumbent Goodluck Jonathan is the front-runner . The election will be held on May 29. The voting was largely peaceful . Official results could be announced as early as Monday .