Momentum in financial peril after leftwing exodus from Labour

Exclusive: grassroots group launches fundraiser with membership down a third from Corbyn years

Momentum's future is at risk from serious financial challenges, the group will warn its supporters this week, amid an exodus of leftwing members from Labour.

The grassroots group, which emerged from Jeremy Corbyn's 2015 leadership campaign, has launched a fundraiser with a plea to supporters, titled Keep Up Momentum". In a video posted on social media alongside the campaign, the group says: We can't let everything we've built disappear."