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
Iranian Green Movement a regular presidential election. Former Prime Minister Mir-Hossein Mousavi was the most popular candidate opposed to Ahmadinejad. The election took place on June 12, 2009 and rapidly caused the significant controversy caused by the disagreement between the government and the opposition over the results of the election. Ahmadinejad was considered to be winning in a landslide, but Mousavi and his supporters believed the results were fraudulent. They suggested that the Interior Minister Sadegh Mahsouli, an ally of Ahmadinejad, had interfered with the election and distorted the votes to keep Ahmadinejad in power. Mousavi claimed victory and called for his supporters