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
Deputy Prime Minister of the United Kingdom his effective deputy. After the 2016 referendum on European Union membership, and David Cameron's subsequent resignation, his successor as Prime Minister, Theresa May, also chose not to appoint an individual to either position. Following the 2017 snap general election, May again did not appoint a Deputy Prime Minister but did appoint Damian Green as First Secretary of State. The Deputy Prime Minister's Office (DPMO) is a non-statutory office, only being formed when a deputy prime minister is appointed which consists of the staff members and advisers who assist the deputy prime minister in his or her role. The most recent