Prime Minister of the United Kingdom the incumbent is consistently ranked as one of the most powerful and influential people in the world. The Prime Minister is the head of the United Kingdom government. As such, the modern Prime Minister leads the Cabinet (the Executive). In addition, the Prime Minister leads a major political party and generally commands a majority in the House of Commons (the lower House of the legislature). The incumbent wields both significant legislative and executive powers. Under the British system, there is a unity of powers rather than separation. In the House of Commons, the Prime Minister guides the law-making process with
House of Commons of Canada other parties. A prime minister may resign even if he or she is not defeated at the polls (for example, for personal health reasons); in such a case, the premiership goes to the new leader of the outgoing prime minister's party. The House of Commons scrutinizes the ministers of the Crown through "Question Period", a daily forty-five-minute period during which members have the opportunity to ask questions of the prime minister and of other Cabinet ministers. Questions must relate to the responding minister's official government activities, not to his or her activities as a party leader or as a private