Mir-Hossein Mousavi parliament did not give him the vote of confidence, and he was defeated with a vote of 80 to 74. Although Khamenei had strong reservations with Mousavi, as a compromise with the left-leaning parliament, agreed to offer Mousavi for the post of premier. On 28 October 1981, with the approval of Khomeini, the parliament approved Mousavi with a vote of 115 to 39 to become the 79th prime minister of Iran on 31 October 1981. 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
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,