Hassan Ayat Iranian Revolution but resigned from the party. Ayat joined the Islamic Republican Party and became a member of its central committee. He was elected as a member of Assembly of Experts for Constitution in Constitutional Convention election. After that, Ayat was elected as a member of Parliament from Tehran. He was one of the main leaders in impeachment of President Abulhassan Banisadr. He was opposed to the election of Mir-Hossein Mousavi as prime minister because he believed that Mir-Hossein Mousavi was a freemasonry agent who had penetrated in the political structure of the Islamic Republic of Iran to attempt the
Mir-Hossein Mousavi sphere. When Khomeini, the founder of the Islamic Republic, died in 1989, Mousavi was no longer welcome in the government. It was the start of 20 years of an almost total absence from public life for Mousavi, which many considered as a sign of his disapproval of the established government, though he did sit on two high-level government councils. In 1989, Ali Khamenei named him as a member of the Expediency Discernment Council, his membership of which still continues. Mousavi has been a member of the Supreme Council of Cultural Revolution since 1996. He was also the political adviser of