Green Party leader Zack Polanski said there were “just days to stop Reform” as he unveiled his candidate for the Gorton and Denton by-election.Labour won the seat in Greater Manchester with more than half the vote – 18,555 – in 2024, with Nigel Farage’s Reform UK coming second on 5,142 votes, narrowly beating the Greens at 4,810.With polls suggesting support for Sir Keir Starmer’s party is crumbling, the Greens have sought to pitch themselves as the main option for voters wanting to stop Reform as leader Mr Polanski seeks to supplant Labour.