Ghana's government Monday in court accused the country's main opposition party NPP of making up election results in its legal challenge against the victory of President John Dramani Mahama in last year's poll. The case being argued at Ghana's Supreme Court has the potential to overturn the results of the elections, which international observers called free and fair. If the suit by the opposition New Patriotic Party (NPP) succeeds, the party's candidate, Nana Akufo-Addo, could be declared the winner of the presidency.