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 Peru is César Villanueva, who took office on 2 April 2018. Recently, the role of the prime minister has been debated, and whether it should be strengthened. This idea has been supported by former presidents Alan García, Alejandro Toledo and Ollanta Humala. Such reforms would enable the prime minister to become the effective head of government, similarly to what happens in countries like France and Russia. Prime Minister of Peru The President of the Council of Ministers of Peru, informally called "Premier" (form of address) or "Prime Minister", heads the Council of Ministers, and is appointed by the President (pending ratification