Iran
After the Supreme Leader, the Constitution defines the President of Iran as the highest state authority. The President is elected by universal suffrage for a term of four years, however, the president is still required to gain the Leader's official approval before being sworn in before the Parliament (Majlis). The Leader also has the power to dismiss the elected president anytime. The President can only be re-elected for one term.
The President is responsible for the implementation of the constitution, and for the exercise of executive powers in implementing the decrees and general policies as outlined by the Supreme Leader, except for matters directly related to the Supreme Leader, who has the final say in all matters. Unlike the executive in other countries, the President of Iran does not have full control over anything, as these are ultimately under the control of the Supreme Leader. Chapter IX of the Constitution of the Islamic Republic of Iran sets forth the qualifications for presidential candidates. The procedures for presidential election and all other elections in Iran are outlined by the Supreme Leader. The President functions as the executive of affairs such as signing treaties and other international agreements, and administering national planning, budget, and state employment affairs, all as approved by the Supreme Leader.
Democracy in the Middle East
Historically Iranians were ruled by an absolute monarchy for several thousand years, at least since the time of the Achaemenid Empire (550 B.C.E.) until the Constitutional Revolution in the early 20th century. The Constitutional Revolution in 1906 replaced the absolute monarchy with a constitutional monarchy. The constitution went under several revisions during the following decades. During World War II Iran stayed neutral but in 1941 the Allies (the USSR and Great Britain) invaded Iran and replaced the Iran's Shah Reza Pahlavi (who was perceived as being pro-German) with his son Mohammad Reza Pahlavi to protect their access to Iranian oil, and to secure routes to ship western military aid to the Soviet Union. Iran's parliamentary government led by Prime Minister Mohammed Mosaddeq was toppled in a 1953 coup d'état by royalist forces supported and funded by CIA and MI6 after Mohammed Mosaddeq nationalized Iranian oil. Shah Mohammad Reza Pahlavi became the preeminent leader in Iran, and instated Fazlollah Zahedi from the military as the new Prime Minister. United States has considered the Shah as a close ally and Iran as its main base in the Middle East. The Shah also tried to modernize Iran's economy and westernize Iran's culture. These and other policies contributed to alienating nationalists, leftists, and religious groups.