Prime Minister Sir Keir Starmer is facing the first explicit threat of a leadership challenge from one of his own MPs, but how serious is that threat? Former minister Catherine West’s decision to say she will try to trigger a contest has startled many in Westminster and prompted a flurry of private debate across the Labour Party.
West told Radio 4’s PM programme she would mount a challenge unless the leadership moved. The move has divided opinion: some MPs describe it as an unexpected and almost bonkers intervention, while others say it reflects deep frustration and pain among those who lost council seats and grassroots networks in recent elections.
Formally, any candidate needs the backing of 20% of Labour MPs — currently 81 colleagues — to force a contest. West says she has about 10 supporters at present, well short of the threshold, and many MPs reckon she cannot reach the numbers required. That outcome could even play into Sir Keir’s hands: if a formal contest cannot be launched, he could argue there is no appetite for change and seek to move on.
But the picture is not unanimous. Some believe West might pick up enough MPs to cross the threshold, and private conversations inside the parliamentary party are intense, with a sense that a decisive move could come quickly. One recurring theme is impatience for a clear successor: veteran figures point to Andy Burnham as the one person who could unite many colleagues, but he is currently outside Parliament and would only be able to stand if the timing and party rules allowed his return.
Burnham’s backers are reportedly pursuing a different route: asking Sir Keir to set a timetable for departure so that Burnham could be cleared to return without triggering an immediate, messy contest. That strategy depends on a split in the party between those who want an orderly handover and those who want an immediate contest.
Downing Street and several leadership camps have sought to downplay West’s intervention. Sir Keir himself has ruled out both a sudden exit and an early quit, saying he intends to lead Labour into the next election and would serve a second term if returned.
There are also low-level calls for resignations at cabinet level to force a rethink, but no obvious appetite yet to be the first to go. In the coming days Sir Keir will try to reset his premiership: a speech on Monday aimed at restating his values and a State Opening of Parliament on Wednesday that will set out the government’s legislative programme. The core question remains whether the parliamentary Labour Party will give him the time and space to implement that agenda — or whether impatience will push the party toward a leadership fight.
