History of Iran reelection was hotly disputed and marred by large protests that formed the "greatest domestic challenge" to the leadership of the Islamic Republic "in 30 years". The resulting social unrest is widely known as the Iranian Green Movement. Reformist opponent Mir-Hossein Mousavi and his supporters alleged voting irregularities and by 1 July 2009, 1000 people had been arrested and 20 killed in street demonstrations. Supreme Leader Ali Khamenei and other Islamic officials blamed foreign powers for fomenting the protest. On 15 June 2013, Hassan Rouhani won the presidential election in Iran, with a total number of 36,704,156 ballots cast; Rouhani won
2009 Mir-Hossein Mousavi presidential campaign one of the original founders of the Iranian reformist camp, he shares many principles of the conservatives. Many reformist parties, among them reformist Islamic Iranian Participation Front, whose main candidate was Khatami, have supported his candidacy after the latter withdrew from the race. Many supporters of the reformist movement have however objected to Mousavi's candidacy on the grounds that he is not committed to the principles of the reformist parties. Although Mousavi stated that he was not running as a reformist, he indicated that he welcomed the support of different parties, both reformist and conservative. He started his campaign from