Momentum founder Jon Lansman has suggested Jeremy Corbyn should not resign as Labour leader until the New Year if the exit poll forecasting catastrophic losses for the party proves accurate.
Mr Lansman, who set up the pro-Corbyn campaign group in 2015, said Labour winning just 191 seats - as the poll predicts - would be because "this was a Brexit election. Brexit was incredibly hard for us to navigate".
Appearing on ITV News' coverage of the election, he was asked whether Mr Corbyn should resign over the result, which would be Labour's worst in modern times.
"Jeremy Corbyn has to make those decisions himself. He's always been a reluctant leader," he said.
