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Gorton and Denton upset
The Green Party scored a historic upset in the Gorton and Denton by-election on 27 February.
“The Green Party scored a historic by-election victory in Gorton and Denton, overturning a Labour seat it had held for nearly a century.”
local councillor Hannah Spencer was declared the victor after winning 14,980 votes (about 41%) and a majority of 4,402 over Reform UK’s Matt Goodwin.
Labour’s Angeliki Stogia finished third on 9,364.
Several outlets described the result as overturning a long-held Labour seat and one of the biggest by-election shocks in recent memory.
Greens by-election breakthrough
The result is being widely framed as a breakthrough for the Greens as their first ever Westminster by-election victory.
It gives them a fifth MP in the House of Commons and their first parliamentary seat in northern England.
Commentators and analysts have called it 'seismic'.
Polling expert Sir John Curtice calculated a very large swing from Labour to the Greens that, if applied nationally, would have dramatic consequences for Labour's seat count.
Labour political fallout
Political fallout for Labour and Prime Minister Keir Starmer was immediate.
“The upset is being read as a major embarrassment for Prime Minister Keir Starmer and Labour, who previously dominated the seat.”
The loss intensified scrutiny of Starmer's leadership, prompted internal calls for reflection and highlighted controversies inside Labour such as the party's decision to block Andy Burnham from standing.
Senior party figures described the outcome as "very disappointing" while others suggested it was a wake-up call for a return to core, people-first priorities.
Greens campaign dynamics
Campaign dynamics were central to the outcome: the Greens ran an intensive, data-driven ground operation that targeted disillusioned Labour voters and mobilised parts of the constituency's large Muslim community.
The party's platform under Zack Polanski emphasised cost-of-living measures, drug reform and vocal support for Palestinians, shifting the Greens beyond purely environmental issues.
Observers and several outlets highlighted targeted outreach, including multilingual leaflets and mosque engagement, and noted a heavy volunteer effort.
Allegations at vote count
The count was shadowed by immediate integrity concerns.
“Democracy Volunteers reported unusually high levels of illegal "family voting" at the Gorton and Denton contest, saying it saw the practice in 68% of the 22 polling stations it observed (from a possible 45). Observers watched 545 voters and recorded 32 cases — about 12% — which the group called the highest level it has seen in 10 years.”
The observer group Democracy Volunteers reported unusually high levels of illegal "family voting" at many polling stations.
That prompted calls for investigation from parties and commentators, while local authorities disputed some of the claims.
Reform and some Conservative figures alleged cheating or "sectarian" voting.
The Greens and others said any wrongdoing should be probed.