Which Prime Minister of the United Kingdom had a 179-seat majority in the house of Commons, the largest in post-war history?

The United Kingdom general election of 1997 was held on 1 May 1997, five years after the previous election on 9 April 1992, to elect 659 members to the British House of Commons. Under the leadership of Tony Blair, the Labour Party ended its 18 years in opposition and won the general election with a landslide victory, winning 418 seats, the most seats the party has ever held. The election saw a huge 10.2% swing from the Conservatives to Labour on a national turnout of 71% and would be the last national vote where turnout exceeded 70% until the 2016 EU Referendum was held nineteen years later. Blair, as a result, became Prime Minister of the United Kingdom of Great Britain and Northern Ireland, a position he held until his resignation in 2007.

Labour won a landslide victory with their largest parliamentary majority (179) to date. On the BBC's election night programme Professor Anthony King described the result of the exit poll, which accurately predicted a Labour landslide, as being akin to "an asteroid hitting the planet and destroying practically all life on Earth". After years of trying the Labour Party had convinced the electorate that they would usher in a new age of prosperity—their policies, organisation and tone of optimism slotting perfectly into place.