Government of Mir-Hossein Mousavi (1985–89) 28 October, the parliament approved Mousavi with a vote of 115 to 39. Mousavi became the 79th Prime Minister of Iran on 31 October 1981, and remained the prime minister of Iran until 3 August 1989, for eight years. The conflicts between Mousavi, who belonged to the left wing of the Islamic Republic, with Ali Khamenei (the current leader of Iran), who belonged to the right wing of the Islamic Republic, continued during their eight years of shared governance. However, an escalation in conflicts between the two led to Mousavi's resignation shortly after the end of the Iran–Iraq War in
History of the Islamic Republic of Iran parliament. Despite high turnout and large enthusiastic crowds for reformist opponent Mir-Hossein Mousavi, Ahmadinejad was officially declared to have won by a 2–1 margin against three opponents. Allegations of voting irregularities and protest by Mousavi his supporters were immediate and continued off and on into 2011. Some 36–72 were killed and 4000 arrested. Supreme Leader Ali Khamenei declared Ahmadinejad's victory a "divine assessment" and called for unity. He and others Islamic officials blamed foreign powers for fomenting the protest. However, by late 2010 several sources detected a "growing rift" between Ahmadinejad, and Khamenei and his supporters, with talk of impeachment