The politics of Iran take place in a framework of a theocracy in a format of syncretic politics that is guided by Islamic ideology. The December 1979 constitution, and its 1989 amendment, define the political, economic, and social order of the Islamic Republic of Iran, declaring that Shia Islam of the Twelver school of thought is Iran's official religion.
Iran has an elected president, parliament (or Majlis), "Assembly of Experts" (which elects the Supreme Leader), and local councils. According to the constitution all candidates running for these positions must be vetted by the Guardian Council before being elected.
In addition, there are representatives elected from appointed organizations (usually under the Supreme Leader's control) to "protect the state's Islamic character".
The early days of the revolutionary government were characterized by political tumult. In November 1979 the American embassy was seized and its occupants taken hostage and kept captive for 444 days because of support of the American Government to the King of Iran (Shah of Iran). The eight-year Iran–Iraq War killed hundreds of thousands and cost the country billions of dollars. By mid-1982, power struggles eliminated first the center of political spectrum and then the Republicans leaving the revolutionary leader Ayatollah Khomeini and his supporters in power.
Iran's post-revolution challenges have included the imposition of economic sanctions and suspension of diplomatic relations with Iran by the United States because of the hostage crisis, political support to Iraq and other acts of terrorism that the U.S. government and some others have accused Iran of sponsoring. Emigration has lost Iran millions of entrepreneurs, professionals, technicians, and skilled craftspeople and their capital." For this and other reasons Iran's economy has not prospered. Poverty rose in absolute terms by nearly 45% during the first 6 years since Iraqi invasion on Iran started and per capita income has yet to reach pre-revolutionary levels when Iraqi invasion ended in 1988.