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
Prime Minister of Australia use it when he was no longer PM. Only one Prime Minister who had left the Federal Parliament ever returned. Stanley Bruce was defeated in his own seat in 1929 while Prime Minister but was re-elected to parliament in 1931. Other Prime Ministers were elected to parliaments other than the Australian federal parliament: Sir George Reid was elected to the UK House of Commons (after his term as High Commissioner to the UK), and Frank Forde was re-elected to the Queensland Parliament (after his term as High Commissioner to Canada, and a failed attempt to re-enter the Federal Parliament). From