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
Mir-Hossein Mousavi in Shiraz, "Haft-e-tir Martyr's tomb" in Tehran's Behesht-e Zahra, and "Salman mosque" in the presidential residence are examples of his work. In recent years, he has been more active in painting and has participated in many exhibitions. Mousavi refused to run for the presidency in the 1997 elections, which caused the reformists to turn to his former Cabinet Minister, then a little-known cleric, Mohammad Khatami, who was elected by a landslide. During Khatami's administration, Mousavi served as the Senior Adviser to the President. Mousavi was considered the leading candidate from the reformist alliance to run in the Iranian presidential election,