Prime ministership of Mir-Hossein Mousavi secret negotiations and dealing with USA on helping them free the American hostages in Lebanon, in return for sale of the American weapons and spare-parts that Iran's army badly needed for Iran–Iraq War. Shortly after the end of Iran–Iraq War on 20 August 1988, Ruhollah Khomeini died, and Ali Khamenei was elected as the new Supreme Leader by the Assembly of Experts. Following his death, Mousavi and his fellow left-wingers lost their main source of support within the establishment. During the parliament hearing on post-war reconstruction plans, Mousavi had heated arguments with Ali Akbar Hashemi Rafsanjani, the speaker of Iran's
Hassan Khomeini BMW, backed rich politicians and was indifferent to the suffering of the poor". This was "the first time in the history of the Islamic Republic" that one of Khomeini's offspring was "publicly insulted", according to the Iranian daily newspaper "Kargozaran". Khomeini met with reformers before the 2009 election and met with defeated presidential candidate Mir-Hossein Mousavi and "supported his call to cancel the election results". On 9 December 2015, he announced that he would enter politics and run for the Assembly of Experts in the 2016 election. His nomination was rejected by the Guardian Council on February 10, 2016. Hassan