Internal party memo compiled by allies of the Labour leader blamed Brexit for the result.
Exclusive: Wigan MP wins support of Chinese for Labour group, allowing her to join Keir Starmer on the ballot.
Former leadership candidate praises "deeply impressive" Wigan MP.
Labour leadership candidate hits back at GMB presenter.
Wigan MP ensures at least three contenders are now likely on ballot paper.
Endorsement means Wigan MP almost certain to join Starmer and Long-Bailey in final ballot
The race to replace Jeremy Corbyn is now between Keir Starmer, Rebecca Long-Bailey, Lisa Nandy and Emily Thornberry.
Lisa Nandy faces the hustings of her life before the GMB union.
The hustings could turn the contest on its head. Here's a rundown of each candidate's position ahead of Saturday's event in Liverpool.