Deputy Prime Minister of Australia accepted the view put to him by McEwen that to commission a Liberal temporarily as Prime Minister would give that person an unfair advantage in the forthcoming party room ballot for the permanent leader. McEwen's appointment was in keeping with the previous occasion when the main non-Labor party was without a leader; Earle Page of the Country Party was interim Prime Minister between 7 and 26 April 1939—the period between Joseph Lyons' sudden death and the United Australia Party naming Robert Menzies his successor. Since 1968 only two Deputy Prime Ministers have gone on to become Prime Minister: Paul Keating
Prime Minister of Serbia post-War Serbia, which took place on 9 April 1945. Governments were headed by President of the Government until 3 February 1953, President of the Executive Council until 15 January 1991 and again President of the Government since then, but the term Prime Minister is colloquially used (especially in the media) since the government of Dragutin Zelenović in 1991. In some later articles about the recent history of Serbia, term is retroactively applied to Stanko Radmilović, Desimir Jevtić and even back to Ivan Stambolić's government. Prime Minister of Serbia The Prime Minister of Serbia ( / "Premijer Srbije"), officially the President