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 the United Kingdom made by the Sovereign. The House of Commons scrutinises HM Government through "Prime Minister's Questions", when members have the opportunity to ask questions of the prime minister; there are other opportunities to question other cabinet ministers. Prime Minister's Questions occurs once each week, normally for half an hour each Wednesday. 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 Member of Parliament. Customarily, members of the Government party and members of the Opposition alternate when asking questions. In addition to questions asked orally during Question