Keir Starmer is wrestling to restore his grip on Labour today as loyalists vent fury at rebel 'pr**ks' who forced his latest U-turn.
Tensions are running high after a massive revolt saw the PM offer major concessions to salvage flagship legislation on health and disability benefits.
Sir Keir was left personally begging MPs to back the government after more than 120 MPs vowed to kill the plans in a crunch vote on Tuesday.
A deal announced after midnight includes guarantees that existing claimants will not lose money. It is expected to wipe out around £3billion of the £5billion savings the Treasury had hoped to get from the reforms - hardening fears that Rachel Reeves will have to hike taxes again in the Autumn.
There have been claims of shouting matches between whips and rebels, with much fury targeted at Sir Keir's chief of staff Morgan McSweeney and 'over-excitable boys' running No10.
