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Nana Akufo-Addo has won her second four-year term as president of Ghana with 51.59% of the vote, the election commission announced on Wednesday. His longtime rival, former President John Mahama, 62, came in second with 47.36% of the vote, according to the Ghana Election Commission. Akufo-Addo, 76, became the 8th president of Ghana's fourth republic. This is the third time the two men collided in a presidential election in the West African country after the 2012 and 2016 elections. Akufo-Addo has been…