Mohamed Ghannouchi
Following Zine El Abidine Ben Ali's ousting in January 2011, prime minister Mohamed Ghannouchi invoked article 56 of the Constitution regarding temporary absence of the president to assume the role of acting president. This move was deemed unconstitutional by the Constitutional Court hours later and President of the Chamber of Deputies Fouad Mebazaa was appointed as acting president based on article 57 of the Constitution regarding permanent absence of the president. On December 12, 2011, Moncef Marzouki was elected by the newly formed Constituent Assembly as interim president of the Republic.