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
Iranian Reformists However, neither made it to the second round of the election (the final runoff): Moin came in fifth and Karroubi third in the first round. As a result, many supporters of the reform movement lost hope and did not participate in the election. The two leading reformist candidates in the 2009 presidential election were Mir-Hossein Mousavi and Mehdi Karroubi. Mousavi supporters disbelieved the election results and initiated a series of protests that lasted several days. After many days of protesting against the election results, the protests eventually turned violent as the Basij (loyal police to the Islamic Republic) started attacking