Britain’s populist, anti-immigration party Reform UK has beaten Labour by a tiny margin in a by-election, dealing the government a mid-term setback and ruffling the country’s historically resilient two-party hegemony.

Nigel Farage’s right-wing populist party snatched a critical parliamentary seat from the governing Labour Party.

Helen Godwin has held the West of England Combined Authority mayor role for Labour but it was a close race with Reform UK.