"I, Goodluck Ebele Azikiwe Jonathan, have accepted to present myself on the platform of the PDP," he told supporters of his Peoples Democratic Party at a mass rally in Abuja.
Jonathan has been head of state of Africa's most populous nation, leading economy and top oil producer since 2010, when he took over following the death of president Umara Yar'Adua, winning elections in 2011.