Prime Minister of Pakistan departure of Pervez Musharraf allowed Asif Zardari to become President. In 2010, the XVIII Amendment to the Constitution of Pakistan was passed to reverse the XVII amendment; it returned the country to being a parliamentary democratic republic. In addition, the XVIII Amendment removed all powers of the presidency to dissolve the Parliament unilaterally and sweep away the powers amassed by the former presidents Pervez Musharraf and Zia-ul-Haq to maintain a delicate check and balance. Following a contempt of court case, the Supreme Court permanently disqualified Prime Minister Yousuf Raza Gillani. Originally, the PPP nomination was Makhdoom Shahbuddin, but he was
Prime Minister of Australia prime minister, otherwise William McMahon63. Robert Menzies was the oldest person to ever be prime minister, leaving office at 71 years old. The longest-serving Prime Minister was Sir Robert Menzies, who served in office twice: from 26 April 1939 to 28 August 1941, and again from 19 December 1949 to 26 January 1966. In total Robert Menzies spent 18 years, 5 months and 12 days in office. He served under the United Australia Party and the Liberal Party respectively. The shortest-serving Prime Minister was Frank Forde, who was appointed to the position on 6 July 1945 after the death of