Jeremy Corbyn favourability has fallen by 23 percentage points since last year

Jeremy Corbyn’s support among people who voted Labour in the 2017 general election has shrunk markedly, fuelling fears that “peak Corbyn” has passed, a YouGov poll for The Times reveals.

About 63 per cent of Labour voters in the 2017 general election now view Mr Corbyn as favourable, down from 86 per cent in June last year, while 26 per cent view him as unfavourable, up from 9 per cent at election time.

This suggests that Mr Corbyn’s handling of Europe, Russia and antisemitism has eaten into the support he put together during the election campaign.

The poll comes as research suggests that Labour’s new members are older than many presumed. Data from Tim Bale, professor of politics at Queen Mary University of London, shows