Mir-Hossein Mousavi Iranian revolution neared, Mousavi, whose earliest political hero was Che Guevara, became more actively involved in the struggle. He initially participated in the establishment of the Jonbesh-e Mosalmanan-e Mobarez (Movement of Militant Muslims) alongside Habibollah Peyman which eventually led him to join ranks with Mohammad Beheshti, who was a close associate of the revolution leader, Ruhollah Khomeini, and abandoned his previous connections with Ali Shariati. Following the collapse of the Shah's regime in 1979, Mousavi helped Mohammad Beheshti found the Islamic Republican Party in 1979 in order to assist the establishment of the Islamic Republic in Iran and hasten 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