2015 Nigerian general election north-eastern states. The government closed its land and sea borders from midnight on 25 March until the end of the polling date. The election was extended to 29 March due to delays and technical problems with the biometric card readers. It was the most expensive election ever to be held on the African continent. Nigeria is the continent's most populous country, has its largest economy and is its leading oil producer. Opposition candidate Muhammadu Buhari won the presidential election by more than 2.5 million votes. Incumbent President Goodluck Jonathan conceded defeat on 31 March, before the results from all 36
Goodluck Jonathan Executive Council, and was the Chairman of National Economic Council. Vice-President Jonathan was instrumental in negotiating an agreement with many of the major militant groups in the Niger Delta, to lay down their weapons and stop fighting as part of a government amnesty. On 9 February 2010, a motion from the Nigerian Senate invested Goodluck Jonathan as acting President of the Federation because President Yar'Adua was on a trip to Saudi Arabia in November 2009 for medical treatment. On 10 February 2010, during his first day as acting president, Jonathan announced a minor cabinet reshuffle. Prince Adetokunbo Kayode, who was