Explainer: What happens if the UK’s Starmer quits, or is challenged?

Prime Minister Keir Starmer faces growing pressure

Prime Minister Keir Starmer is under significant pressure to step down following a crisis over the appointment of Peter Mandelson as ambassador to the United States. The controversy has intensified due to revelations about Mandelson’s close relationship with Jeffrey Epstein, a U.S. sex offender.

Key political developments

• Anas Sarwar, the Scottish Labour leader, has publicly called for Starmer to resign, making him the most senior Labour politician to do so.
• There are growing calls within the Labour Party for a leadership review, with concerns over the integrity of the appointment process.
• Downing Street has stated that Starmer is not resigning and will continue to focus on his duties.

Leadership transition scenarios

If Starmer were to resign, an interim leader could be appointed, though no clear successor has emerged. The Labour Party would likely hold a leadership election to select a new prime minister, following established procedures.

Public and media reaction

Media outlets such as Reuters, The Times, and Newsweek have reported on the scandal, highlighting the potential fallout for Starmer’s leadership and the Labour Party’s credibility.

While there is no immediate plan to oust Starmer, the situation remains volatile, with political and public scrutiny increasing.

來源：https://www.reuters.com/world/uk/what-happens-if-uks-starmer-quits-or-is-challenged-2026-02-09/