89 members of Parliament (MPs) chose to not seek reelection at the 2015 general election, meaning they were MPs in the 55th Parliament, but chose not to contest the 2015 general election (in some cases after being deselected by their parties). While at the previous election there had been a record 149 MPs not standing for reelection, [1] the 89 standing down in 2015 represented a more usual number. [2] These 89 consist of 37 Labour, 37 Conservative, 10 Liberal Democrat, 3 Independent, 1 Sinn Féin and 1 Plaid Cymru MP. There were no vacant seats at dissolution.
The highest profile members of Parliament leaving were Gordon Brown, the former prime minister and leader of the Labour Party (both 2007 to 2010) and chancellor of the Exchequer (1997 to 2007); and William Hague, the outgoing First Secretary of State and leader of the House of Commons and former Foreign Secretary (2010 to 2014), leader of the Conservative Party and leader of the Opposition (both 1997 to 2001). [3]
Alongside Brown and Hague, seventeen former cabinet ministers stood down at the election, including Stephen Dorrell, Jack Straw, Alistair Darling, David Blunkett, Sir Peter Tapsell (the Father of the House having served continuously since the 1966 general election, in addition to his previous service), Sir Malcolm Rifkind and Dame Tessa Jowell, all of whom had served at least 23 years in the House of Commons. [3] The highest profile Liberal Democrat to stand down was former leader Sir Menzies Campbell. [3]
In total, 89 members of parliament decided not to stand for re-election.
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On 3 September 2019, the British Conservative Party withdrew the whip from 21 of its MPs who had supported an emergency motion to allow the House of Commons to undertake proceedings on the European Union (Withdrawal) Bill on 4 September. In the hours after the vote, the Chief Whip Mark Spencer informed the rebel MPs that they were no longer entitled to sit as Conservatives. This led to the loss of the Conservative/DUP majority in the Commons.
The next United Kingdom general election is expected to be held in 2024 and must be held no later than 28 January 2025. It will determine the composition of the House of Commons, which determines the next Government of the United Kingdom. Significant constituency boundary changes will be in effect, the first such changes since before the 2010 general election.