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 Iranian presidential election protests Mirdamadi, and former president Mohammad Khatami's brother Mohammad-Reza Khatami, who was later released. Also arrested were Mostafa Tajzadeh and Mohsen Aminzadeh, whom the IRNA said were involved in orchestrating protests on 13 June. Unidentified sources said that the police stormed the headquarters of the IIPF and arrested a number of people. Iranian journalist Mashallah Shamsolvaezin claimed that presidential candidate Mir-Hossein Mousavi was put under house arrest, although officials denied this. An estimated 200 people were detained after clashes with students at the University of Tehran, although many were later released. Acting Police Chief Ahmad-Reza Radan stated via the state press