Ken Livingstone has said "the Jewish vote" was not "very helpful", as Labour appears on the brink of electoral disaster.
The former London mayor, who fought accusations he has said antisemitic things, told the Press Association that Labour leader Jeremy Corbyn should resign as the party appears on course to have its worst election result of modern times.
The broadcasters' exit poll forecasts the party will win just 191 seats, compared with 368 for Boris Johnson's Tories.
Mr Livingstone said: "It looks like the end for Jeremy. I'm sure he'll have to resign tomorrow."