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 Zimbabwe Prime Minister of Zimbabwe The Prime Minister of Zimbabwe was a political office in the government of Zimbabwe that existed on two separate occasions. The first person to hold the position was Robert Mugabe from 1980 to 1987 following independence from the United Kingdom. He took office when Southern Rhodesia became the Republic of Zimbabwe on 18 April 1980. This position was abolished when the constitution was amended in 1987 and Mugabe became President of Zimbabwe, replacing Canaan Banana as the head of state while also remaining the head of government. The office of Prime Minister was restored in 2009