Political Metamorphis in Ghana?

Over the past few weeks as a class we have been reading about different types of Political institutions in Acemoglu and Robinson's "Why Nations Fail." Many nations fail to prosper due to bad political institutions where the "elected" officials often times tamper the results preventing democratic change for the people. In Ghana Web,  Ghanaian President John Mahama says that Ghana's electorial process has experienced a "political metamorphisis" over the years and is continuing to "enrich Ghana's democratic dispensation." This coming after his election was petitioned as it was believed that he had in fact tampered with the results to ensure his victory over the New Political Party's Nana Addo Dankwa Akufo-Addo. It is even believed that Mahama payed off the judges in the election petition case. If this fraud is in fact true, political change in Ghana is not moving in the right direction and is still very corrupt. In a corrupt government, the people will be unjustly represented and the nation will fail to succeed as a whole.