Prime ministership of Mir-Hossein Mousavi forward Ali Akbar Velayati as his prime minister, but the Iranian parliament did not give him the vote of confidence, and he was defeated with a vote of 80 to 74. Subsequently, Ali Khamenei, though he had strong disagreements with Mousavi, as a compromise with the left-leaning parliament, agreed to offer him, Mousavi, for the post of premier. On 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
2009 Iranian presidential election movement attempted to unite behind a single candidate; former President Mohammad Khatami was the leading opponent to Ahmadinejad in some opinion polls, until he withdrew and endorsed former Prime Minister Mir-Hossein Mousavi. Former Speaker of the Majlis Mehdi Karroubi, another Reformist, was also running; as was the former commander of the Iranian Revolutionary Guard, Mohsen Rezaee, a conservative with a reputation for political pragmatism. The election marked a return to public spotlight for Mousavi, who had not received much attention since he served as Prime Minister in the 1980s. Reformist opinions galvanized around him as the election grew nearer. He