Clacton the sixth by-election since Labour's general election victorypublished at 04:28 BST
Image source, Getty ImagesClacton is the latest in a run of Westminster by-elections that have taken place since Labour won its majority at the 2024 general election.
Here's a rundown of five we've had so far:
Runcorn and Helsby
Former Labour MP Mike Amesbury resigned after receiving a prison sentence - that was later suspended on appeal - for repeatedly punching a constituent. The resulting by-election, held on 1 May 2025, was won by Reform UK's Sarah Pochin.
Gorton & Denton
The by-election, held on 26 February 2026, was triggered after former Labour minister Andrew Gwynne resigned due to "significant ill health".
The now-prime minister but then-Greater Manchester Mayor Andy Burnham was blocked by Labour from standing in the race, which was subsequently won by the Green Party's Hannah Spencer in their first ever Westminster by-election victory.
Arbroath & Broughty Ferry
The 18 June by-election was triggered after incumbent MP, SNP's Stephen Gethins, was elected to the Scottish Parliament, with the Westminster constituency retained for the SNP by Lara Bird.
Aberdeen South
Like Arbroath & Broughty Ferry, this was also triggered by the incumbent MP, the SNP's then-Westminster leader Stephen Flynn, being elected to the Scottish Parliament.
However unlike Arbroath & Broughty Ferry, the SNP lost the resulting 18 June by-election to the Conservatives' Douglas Lumsden - the party's first Westminster by-election win in Scotland for more than 50 years.
Makerfield
Also held on 18 June, it was triggered by Labour MP Josh Simons stepping down to allow Andy Burnham to run for parliament, something which was not - this time round - blocked by the Labour Party.
Burnham won, Keir Starmer resigned as PM and Burnham was later elected unopposed as Labour leader and therefore UK prime minister.





















