Overview
- Keir Starmer said he would resign and remain caretaker prime minister until a successor is chosen, a decision he announced on Monday after losing the backing of many Labour MPs.
- Andy Burnham confirmed he will run for the Labour leadership after his decisive Makerfield by‑election win returned him to the House of Commons and he was sworn in as an MP on June 22.
- Labour’s National Executive Committee will open nominations on July 9 and candidates must secure 20% of Labour MPs (about 81) to enter the contest, a rule that could produce an uncontested elevation of Burnham by mid‑July or a competitive ballot that runs into September.
- Former health secretary Wes Streeting has publicly backed Burnham, weakening the prospects of a serious internal challenger and increasing the likelihood of a rapid handover.
- The change marks Britain’s seventh prime minister in about a decade and raises key questions about policy direction, with Burnham’s 'Manchesterism' signalling possible moves on public control of services, devolved power and industrial renewal while the party seeks to blunt gains by Reform UK and the Greens; a Greater Manchester mayoral by‑election is expected in late July.