Prime ministership of Mir-Hossein Mousavi 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 1988. As the prime minister, Mousavi had the full backing of Ruhollah Khomeini, the supreme leader, and he refused to accept his resignation. Mousavi is remembered as leading a government that did not tolerate dissent. Mousavi's premiership coincided with the Iran–Iraq
2009 Mir-Hossein Mousavi presidential campaign one of the original founders of the Iranian reformist camp, he shares many principles of the conservatives. Many reformist parties, among them reformist Islamic Iranian Participation Front, whose main candidate was Khatami, have supported his candidacy after the latter withdrew from the race. Many supporters of the reformist movement have however objected to Mousavi's candidacy on the grounds that he is not committed to the principles of the reformist parties. Although Mousavi stated that he was not running as a reformist, he indicated that he welcomed the support of different parties, both reformist and conservative. He started his campaign from