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 Canada in October of the fourth calendar year after the previous polling date. Following parliamentary dissolution, the prime minister must run in the resulting general election if he or she wishes to maintain a seat in the House of Commons. Should the prime minister's party subsequently win a majority of seats in the House of Commons, it is unnecessary to re-appoint the prime minister or again swear him or her into office. If, however, an opposition party wins a majority of seats, the prime minister may resign or be dismissed by the governor general. Should the prime minister's party achieve a