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 Italy Giolitti was Prime Minister five times between 1892 and 1921 and the second-longest serving Prime Minister in Italian history. Giolitti was a master in the political art of "trasformismo", the method of making a flexible, fluid centrist coalition in Parliament which sought to isolate the extremes of the left and the right in Italian politics. Under his influence, the Italian Liberals did not develop as a structured party. They were instead a series of informal personal groupings with no formal links to political constituencies. The period between the start of the 20th century and the start of World War I,