An Election's Long Shadow

Nigerian president Olusegun Obasanjo won re-election on April 19 in a vote that observers say was marred by fraud. The opposition, led by runner-up Muhammadu Buhari, wants Obasanjo to resign before his first term ends on May 29 and allow a new vote. Buhari met with TIME's Gilbert Da Costa in Abuja last week.

Why are you contesting the result? This is the most fraudulent election in the...