UK Prime Minister Keir Starmer set to resign after Labour Party turns on him

AI Summary

UK Prime Minister Keir Starmer is expected to announce his resignation on Monday after determining his position is no longer sustainable, following mounting pressure within the Labour Party intensified by rival Andy Burnham's parliamentary victory. Government sources issue contradictory statements about Starmer's continued commitment to his role, creating uncertainty around the timing of any announcement. The pressure on his leadership has built over months but sharpened dramatically following the by-election outcome.