Prime Minister of the United Kingdom seats than the opposition in a general election. Since 1722, most Prime Ministers have been members of the Commons; since 1902, all have had a seat there. Like other members, they are elected initially to represent only a constituency. Former Prime Minister Tony Blair, for example, represented Sedgefield in County Durham from 1983 to 2007. He became Prime Minister because in 1994 he was elected Labour Party leader and then led the party to victory in the 1997 general election, winning 418 seats compared to 165 for the Conservatives and gaining a majority in the House of Commons. Neither the
Prime Minister of Sri Lanka President will appoint a member of parliament as Prime Minister, who in the President’s opinion, "is most likely to command the confidence of Parliament". The prime minister will continue to hold office throughout the period during which the cabinet of ministers continues to function under the provisions of the constitution unless he/she resigns from the post or ceases to be a member of parliament. Under the Soulbury Constitution the post of Prime Minister was created in 1947 as the head of government in the Westminster system. In 1978, under the second amendment to the Republican Constitution of 1972 much of