[custom_adv] The Expediency Discernment Council of the System is an administrative assembly appointed by the Supreme Leader and was created upon the revision to the Constitution of the on 6 February 1988. [custom_adv] It was originally set up to resolve differences or conflicts between the Majlis and the Guardian Council, but "its true power lies more in its advisory role to the Supreme Leader. [custom_adv] " According to Hooman Majd, the Leader "delegated some of his own authority to the council — granting it supervisory powers over all branches of the government" following President Mahmoud Ahmadinejad's election in 2005. [custom_adv] The EDC Chairman is appointed every five years by the Supreme Leader. Even though the Supreme Leader is a member of the Council itself (and it being his advisory council), he can deputize the Council. [custom_adv] Nine years later, in 1997, expanded its membership to thirty-four, twenty-five of whom were thence appointed for five-year terms. During February 2007, a new Council was formed, with twenty-seven members being directly chosen by the Supreme Leader this time. [custom_adv] Members of the council are chosen by the Supreme Leader every five years. [custom_adv] [custom_adv] The confrontation referred to the parliament's rejection to approve conservative appointments to the Guardian Council. Conservatives did not want to lose control of the Guardian Council, dreading president Mohammad Khatami and reformist allies would push through political and social reforms.