Andy Burnham is set to become the next UK Prime Minister after Keir Starmer announced his resignation on Monday, June 22, 2026, setting out a timetable for his departure from Downing Street.
Starmer’s resignation followed mounting pressure from within the Labour Party and his own Cabinet after Burnham won the Makerfield by-election on June 18 with a decisive victory over Reform UK, defeating the opposition candidate by more than 9,000 votes.
The Greater Manchester mayor’s triumph in Makerfield gave him a seat in Parliament and positioned him as a credible challenger to Starmer’s leadership. Burnham’s victory revived calls within Labour for a change in direction, with senior Cabinet figures including Foreign Secretary Yvette Cooper and Transport Secretary Heidi Alexander urging the Prime Minister to step down.
According to reports, Starmer and Burnham are working towards an orderly handover in September 2026. Sources indicated that the PM is discussing the “political realities” of his position with key allies, with an autumn departure the most likely scenario. This timeline would allow for a structured transition rather than an immediate change of leadership.
Burnham, who served as Mayor of Greater Manchester before returning to Parliament, has emerged as the public’s preferred choice to replace Starmer. Polling data showed strong public support for his potential leadership, and his allies have signaled commitment to an orderly succession process that would avoid further disruption to the government.
The 56-year-old politician presents himself as a northern outsider who can offer a new direction for Labour. His by-election victory was widely interpreted as a referendum on Starmer’s premiership, which has faced challenges including economic pressures and policy concerns. Burnham’s win in Makerfield, a traditionally Labour seat, demonstrated his ability to mobilize voters and unite the party around an alternative vision.
The transition follows less than two years after Labour’s landslide election victory under Starmer in 2024, marking a dramatic shift in the party’s fortunes. The leadership change represents one of the most significant political developments in recent British politics, with Burnham poised to lead the country through the remainder of the parliamentary term.
Sources
- Sky News — Starmer’s resignation announcement on June 22, 2026, with timeline for departure
- BBC News — Confirmation of Starmer’s resignation and Burnham’s position as successor
- The Guardian — Details on autumn handover timeline and Starmer’s exit plan
- The Independent — Reports of September handover and PM-Burnham negotiations
- Al Jazeera — Coverage of Burnham’s by-election win and pressure on Starmer
- NPR — Burnham’s Makerfield by-election victory on June 18, 2026
- Reuters — Confirmation of Burnham’s decisive election win and leadership challenge
- Manchester Evening News — Exclusive on September transition and Burnham’s preparation for handover
