LABOUR leadership contender Rebecca Long-Bailey faces an exodus of MPs if she wins the party crown.
The ex-solicitor is second-favourite to win the contest and her campaign was boosted after the support of union Unite.
But one moderate Labour MP said: “I will walk out of the party.
“I will leave, it will be the end of the party, it will be over.”
“We all may have our favoured candidate but in reality it has to be ‘Anyone But Becky’ for the party to survive.”
Unite boss ‘Red’ Len McCluskey said she had the “brains and the brilliance” to beat Boris Johnson.
She claimed this week that she had no friends among Tory MPs at Westminster and told how she would be “disappointed” if her friends backed Boris.
Long-Bailey, who was first elected in 2015, is backed by senior party figures John McDonnell and Diane Abbott.