Labour must cease taking progressive voters for granted, says Sadiq Khan

London mayor criticises PM for calling Greens ‘extreme’ after Gorton and Denton loss, saying it is a ‘flawed strategy’Sadiq Khan: ‘Labour must stop channelling Reform and unite with progressives. That’s the byelection’s lesson’The mayor of London has said the Gorton and Denton byelection has exposed a “far-reaching change and fracturing” in UK politics and Labour must ditch its “flawed strategy” of taking liberal pr…