Prime Minister of the United Kingdom century as a convention of the constitution, the position of Leader of the Opposition was given statutory recognition in 1937 by the Ministers of the Crown Act. British Prime Ministers have never been elected directly by the public. A Prime Minister need not be a party leader; David Lloyd George was not a party leader during his service as prime Minister during World War I, and neither was Ramsay MacDonald from 1931 to 1935. Prime Ministers have taken office because they were members of either the Commons or Lords, and either inherited a majority in the Commons or won more
Deputy Prime Minister of Australia the Prime Minister in his or her absence overseas or on leave. The Deputy Prime Minister has always been a member of the Cabinet, and has always held at least one substantive portfolio. (It would be technically possible for a minister to hold only the portfolio of Deputy Prime Minister, but this has never happened). If the Prime Minister were to die, become incapacitated or resign, the Governor-General would normally appoint the Deputy Prime Minister as Prime Minister on an interim basis until the governing party elects a new leader, but is not obligated to do so. This has not