Seyed Mahmood Hosseini election as one of the reformist candidates from Isfahan, but disqualified by the Council of Guardians. During the protests about the 2009 Iran presidential election, Seyed Mahmood Hosseini signed an open letter to the top Iranian Shia clerics prepared by Mohammad Khatami, Mir Hossein Mousavi, Mehdi Karoubi and some of the renowned reformist figures, by pointing out the arrests after the election, as being the reference and support of the great nation of Iran, to remind the government about the damaging outcomes of their unlawful acts. Hosseini was appointed to Isfahan province governor on August 6, 2002 and held 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