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Sire
Gorton and Denton By-Election — 26 February 2026
Background
Triggered by the resignation of Andrew Gwynne, who was sitting as an independent after being suspended from Labour in February 2025 following antisemitic comments made in a private WhatsApp group. Gwynne cited significant ill health as his reason for standing down. WikipediaAndy Burnham, Greater Manchester mayor, applied to be the Labour candidate but was blocked by the party's National Executive Committee Wikipedia — a significant subplot that has damaged Labour's standing going into the contest.
The Constituency
It's a Frankenstein's monster seat — demographically split in two. The four Manchester wards (roughly 65% of votes) are on average 42% white and 40% Muslim, with 42% either students or graduates. The three Tameside/Denton wards are 83% white, 86% UK-born, with a high share of working-class occupations. SubstackIn short: the Manchester half is fertile Green/left territory; the Denton half is Reform territory.
The Three Main Candidates
Hannah Spencer — Green Party. A 34-year-old Mancunian plumber and plasterer, and a Trafford councillor. She's been regularly recognised and greeted by locals on the campaign trail. Middle East Eye Workers Party, who aren't standing, have effectively endorsed the Greens, saying "Labour and Reform must lose."
Matt Goodwin — Reform UK. Former GB News presenter and academic, promising he was "not part of the establishment." ITV News Granada Tommy Robinson endorsed him — which Goodwin and Reform rejected. Wikipedia He pulled out of a key local hustings event, which Labour and the Greens used against him.
Angeliki Stogia — Labour. Defending what was a safe seat on paper. Labour has been badly damaged nationally and locally by the Burnham NEC block.
Polling & Prediction Markets
The first constituency-specific poll (Omnisis) showed Greens on 33%, Reform on 29%, Labour on 26%. Green PartyElectoral Calculus MRP modelling has Reform winning with 32%, Greens second on 23%, Labour third on 22.6% — though MRP polls for individual by-elections carry significant uncertainty. The Conversation
Prediction market Polymarket has the Green Party's Hannah Spencer as strong favourite at 67%, Reform's Matt Goodwin at 20%, and Labour at 14%. Polymarket
Key Factors
Why Greens could win: The Muslim and student-heavy Manchester wards are exactly where Green support has been surging. With Workers Party not standing and effectively endorsing them, they have a consolidation opportunity on the left. Tactical voting organisations have urged anti-Reform voters to back the Greens. Spencer is a credible, local, working-class candidate — a strong contrast to Goodwin.Why Reform could win: In Runcorn and Helsby, Reform's vote increased by 20 points from the general election to the by-election. If they repeat that here they win comfortably. The Conversation The Denton wards are classic Reform territory.
Why Labour struggles: Labour is polling below 20% nationally, led by the most unpopular Prime Minister in polling history, and has particularly struggled with the young progressives and Muslim voters who are concentrated in the Manchester wards of this seat. UK in a changing Europe The Burnham blocking debacle will cost them votes.