Labour lost white working-class voters to Greens in Gorton and Denton, party analysis finds

The party’s deputy leader Lucy Powell says: ‘There’s no doubt that we suffered from a large protest with voters telling us to do better, be stronger about our purpose and values, and deliver the change we promised faster.’ Photograph: Wiktor Szymanowicz/Future Publishing/Getty Images

Labour lost significant numbers of white working-class voters to the Greens in Gorton and Denton, the party’s postmortem has concluded, after it came third in the Greater Manchester byelection last month.

The Greens won the byelection, with Reform in second place.