Leader of the Government in the House of Commons (Canada) procedure in order to argue points of order before the Speaker of the House of Commons as well as be a good strategist and tactician in order to outmanoeuvre the opposition parties. From 1867 until World War II, the Prime Minister of Canada took upon himself the responsibilities of being Leader of the Government in the House of Commons, organizing and coordinating House of Commons business with the other parties. The expansion of government responsibilities during the war led to Prime Minister William Lyon Mackenzie King deciding to delegate the House leadership to one of his ministers. In 1946, the
Prime Minister of the United Kingdom origins of the position are found in constitutional changes that occurred during the Revolutionary Settlement (1688–1720) and the resulting shift of political power from the Sovereign to Parliament. Although the Sovereign was not stripped of the ancient prerogative powers and legally remained the head of government, politically it gradually became necessary for him or her to govern through a Prime Minister who could command a majority in Parliament. By the 1830s the Westminster system of government (or cabinet government) had emerged; the Prime Minister had become "primus inter pares" or the first among equals in the Cabinet and the head