Keir Starmer is under intense pressure from Labour MPs to resign or announce a departure timetable following Andy Burnham's victory in the Makerfield parliamentary by-election on June 19, 2026 [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11]. Burnham’s win, with a majority of over 9,000 votes and more than 50% of the vote share, allows him to launch a formal leadership challenge to Starmer [4, 1, 2, 5, 6, 11, 8, 9]. Starmer publicly stated on the night of the byelection that "If there is a contest, just to be clear with you, then, yes, I will run" to defend his leadership [4, 1, 2, 8, 9].
Despite Starmer’s defiance, more than 100 Labour MPs—about a quarter of the parliamentary party—have called for him to quit or to set a clear timeline for his departure [1, 2, 5, 6]. Some senior party figures expect Starmer to announce his future plans as soon as June 22, 2026 [1, 2, 4, 5, 12, 6, 8, 9]. Cabinet ministers reportedly told Starmer to give a timetable during the weekend of June 20-21 or risk being forced out at the June 23 cabinet meeting [4, 7, 11]. Starmer spent that weekend at his Chequers country residence reflecting on his political future amidst growing unrest within Labour [1, 2, 4, 5, 12, 6, 7, 11, 8, 10].
Business Minister Peter Kyle denied knowledge of impending resignation, saying, "I have nothing to believe that they are true. I am seeing a lot of speculation... Today, as in every other day I’ve ever known Keir, he is out there working hard." Kyle also added Starmer is "making time to reflect on the political realities, challenges and opportunities that he finds himself in" [5, 12, 6, 4]. Other government officials echoed that Starmer remains focused on governing despite the pressure [1, 5, 12, 6, 4].
Andy Burnham is widely seen as the most likely successor to Starmer, either through a leadership contest or a negotiated transition [2, 3, 4, 7, 11, 8]. Burnham plans to take his seat in the Commons on June 22, formally entering Parliament as the new MP for Makerfield [10]. Wes Streeting, the former health secretary, has also declared a leadership bid with backing from about 81 MPs [7, 11, 8, 9]. Some Labour figures fear a prolonged contest may deepen party divisions [7, 11].
Starmer’s popularity has sank to the lowest levels recorded for any British leader amid election losses and scandals affecting Labour [2, 8, 9]. Political observers note that if he resigns, the UK would see its seventh prime minister in a decade [2, 3, 7, 10]. Former Shadow Cabinet member Toby Perkins expressed concern, saying, "I do not want the prime minister to resign. That would mean the seventh prime minister in 10 years for the country" [11]. Former US President Donald Trump criticized Starmer’s record and predicted his resignation, stating, "Starmer will resign as prime minister. He has been terrible on immigration and energy policies. I wish him well!" [11].
Starmer is expected to announce a timetable for his resignation on June 22, likely remaining in office until autumn to allow Burnham to prepare for leadership ahead of Labour’s conference in September [7, 8, 9, 10].
