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 Sri Lanka new elections could be held to elect a new president. This was the case with H.E. President Dingiri Banda Wijetunge. United National Party leaders Dudley Senanayake and Ranil Wickramasinghe together with Sri Lanka Freedom Party leader Sirimavo Bandaranaike was appointed three times to the position. With the passing of the 19th amendment to the constitution in 2015, the prime minister was granted more powers when appointing ministers and leading the cabinet. On the 26th October 2018, former President Mahinda Rajapaksa was appointed by Maithripala Sirisena as the Prime Minister dismissing incumbent Prime Minister Ranil Wickremasinghe. Wickremasinghe refused to accept the