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Won the 1964 general election by a slim margin.
Called the 1966 general election, winning a larger majority.
Lost the 1970 general election, ending his term. -
Won the 1970 general election, becoming prime minister.
Failed to form a minority government after the Hung parliament result of the Feb 1974 general election, leading to a Labour minority government. -
Formed a minority government after the Hung parliament result of the Feb 1974 general election.
Won a slight majority in the Oct 1974 general election.
Resigned in 1976 due to ill-health. -
Won the 1976 Labour leadership election after Wilson's resignation.
Lost his majority over time by by-elections.
Entered a working coalition with the Liberals with the Lib-Lab pact, to gain a working majority in 1977.
Lost a vote of no confidence due to the 'winter of discontent'.
This forces him to call the 1979 general election, which he loses. -
Won the 1979 general election, becoming the first female prime minister.
Wins further majorities in the 1983 and 1987 general elections.
Term ended after losing the 1990 Conservative leadership election. -
Won the 1990 Conservative leadership election after Thatcher's resignation.
Won a majority in the 1992 general election.
Though this majority was lost after the 1996 Barnsley East By-election.
Term ended after landslide defeat in the 1997 general election. -
Won a Landslide in the 1997 general election.
Won further, though diminishing, landslides in the 2001 and 2005 general elections.
Resigned due to his controversial entry in the Iraq war on the 27th June 2007. -
Won the 2007 Labour leadership election, becoming Prime minister.
Term ended after losing the 2010 general election. -
Became PM after forming a coalition with the Liberal Democrats after the 2010 general election produced a hung Parliament.
Broke with the Liberal Democrats for the 2015 general election, winning a majority.
Resigned after controversy in the 2016 EU referendum. -
Won the 2016 Conservative leadership election after Cameron's resignation, becoming PM.
Lost her majority in the 2017 general election so made a coalition with the Democratic Unionist Party.
Resigned in 2019 after failing to complete Brexit. -
Won the 2019 Conservative leadership election.
Won a landslide in the 2019 general election.
Resigned after several scandals, such as the partygate scandal. -
Became PM after winning the Sep 2022 Conservative Party leadership election after Johnson's resignation due to several scandals.
She herself resigned just over a month later due to the economic crash caused by her Mini-budget, making her the shortest serving undisputed prime minister, and triggering another leadership election. -
Became PM after winning the Oct 2024 Conservative Party leadership election, following Liz Truss's resignation.
Notable for planning to send illegal migrants to Rwanda as a deterrent, attempting to scrap A-levels, ban smoking among other things.
Was defeated in the 2024 General Election by Labour leader Keir Starmer, who became PM.