Hannah Spencer, a 34-year-old Green Party city councilor, beat the far-right Reform UK candidate and the Labour representative by a wide margin in a constituency that had been held by Labour for nearly a century.

Reform and the Greens both insist they can win Gorton and Denton from Labour – and if they do, it could be another nail in the prime minister’s coffin. Helen Pidd reports on how…

Polls put seat in three-way dead heat with Labour facing threats from Reform and Green party in once safe seat