Pressure on British Prime Minister Keir Starmer to resign has reached a new peak following a decisive by-election win for Andy Burnham, the Greater Manchester mayor seen by many Labour MPs as a potential successor. Burnham won his contest with close to 55 percent of the vote, a result that several Labour lawmakers are treating as a signal that the party should move toward a leadership change ahead of the next general election.
More than 90 Labour MPs have publicly called on Starmer to resign or lay out a timeline for his departure, even as over 100 others have signed letters backing him to continue. The split reflects months of falling approval ratings for the prime minister, who has faced criticism over the cost-of-living squeeze, a string of policy reversals and other controversies that have eroded his standing since taking office.
Starmer has so far resisted the calls and indicated he would contest any formal leadership challenge rather than step aside voluntarily. Westminster observers say a decision on whether he announces a transition timeline could come within days, as Burnham prepares to be sworn in as a member of parliament following his win.
The episode marks one of the most serious internal challenges to a sitting UK prime minister in recent years, with the outcome likely to shape Labour's direction heading into the next election cycle.
