Answer
Nana Akufo-Addo, the current President of Ghana, defeated John Mahama in the 2016 presidential election. Akufo-Addo, representing the New Patriotic Party, won with 53.8% of the vote, while Mahama, the incumbent from the National Democratic Congress, received 44.4%. This marked the first time in Ghana's history that an opposition candidate had defeated an incumbent president.