Lead: On 9 February 2026, former BBC presenter Andrew Marr told LBC he expects Prime Minister Keir Starmer to step down within days after Morgan McSweeney resigned as Downing Street chief of staff. The resignation followed criticism over Starmer’s knowledge of Lord Peter Mandelson’s continued contact with Jeffrey Epstein at the time of Mandelson’s appointment as UK Ambassador to the US. Starmer is set to address Labour MPs as pressure mounts and two deputies have been named joint acting chiefs of staff.
Key takeaways
- Morgan McSweeney resigned as Downing Street chief of staff on 9 February 2026, saying he advised the controversial appointment and took responsibility.
- Sir Keir Starmer acknowledged he knew of Lord Peter Mandelson’s ongoing links to Jeffrey Epstein when recommending him for the ambassadorial role.
- Andrew Marr told LBC on 9 February 2026 that he would not be surprised if Starmer announced his resignation within days.
- Labour has appointed Vidhya Alakeson and Jill Cuthbertson as joint acting chiefs of staff, with Alakeson overseeing policy and external relations and Cuthbertson managing the prime minister’s diary.
- Some Labour figures and backbench critics described the government’s position as precarious; at least one MP told the Daily Express that Starmer was “probably a dead man walking.”
Background
Keir Starmer’s Labour won a decisive general election in 2024; Morgan McSweeney has been widely credited inside the party as a principal architect of that campaign. McSweeney’s role as chief of staff made him central to Downing Street decision-making and personnel choices. The controversy centers on Lord Peter Mandelson, a veteran Labour figure appointed to a senior diplomatic post, and reports that he maintained contact with Jeffrey Epstein — a convicted sex offender whose network has drawn intense scrutiny.
The revelation that Starmer was aware of Mandelson’s contacts when the appointment was made intensified scrutiny of Whitehall vetting and judgement. For many MPs and observers, McSweeney’s resignation is a tangible acknowledgement of responsibility and a flashpoint for questions about internal party governance and the premier’s political durability. The story has moved rapidly from internal Labour briefing rooms to national broadcast outlets and newswires.
Main event
The immediate trigger was McSweeney’s public resignation, in which he said he had advised the appointment and accepted responsibility for the mistake. Within hours, broadcasters and political programmes, including LBC, carried analysis and speculation about the prime minister’s future. Andrew Marr, speaking on LBC, framed the situation as potentially terminal for Starmer’s premiership and said a swift departure would be unsurprising.
Downing Street moved to stabilise operations by naming Vidhya Alakeson and Jill Cuthbertson as joint acting chiefs of staff; both are known insiders, the former handling policy and external relationships and the latter controlling the prime minister’s diary. Starmer scheduled an address to Labour MPs as he seeks to reassert control and answer questions from colleagues about the decision-making that led to the Mandelson appointment.
Across Westminster, critics and supporters reacted quickly. Longstanding critics called for broader change at the top of the party, while some Labour MPs urged calm and due process. The pace of media coverage and the prominence of the figures involved have amplified political pressure on the prime minister in a matter of days rather than weeks.
Analysis & implications
The resignation of a chief of staff is a major political event because that role combines operational control with political strategy. McSweeney’s departure signals an internal acknowledgment of error and creates both an organisational gap and a narrative problem for the government. If Marr’s prediction were to come true within days, the party would face an abrupt leadership test that could include a short, contested process or an orderly handover depending on the party’s timetable and internal rules.
Prospective successors mentioned in broadcast commentary reflect the party’s factional map: a candidate seen as representing the party’s left (often named in media coverage) and a centre or right figure who appeals to the broader parliamentary party. That dynamic could shape any contest and the policy direction that follows. Internationally, a sudden UK leadership change would complicate ongoing diplomatic work, particularly in Washington if the Mandelson appointment remains a live issue.
Politically, the episode raises questions about vetting systems, adviser influence, and how reputational risk is managed inside government. Even if Starmer remains in post, trust erosion among MPs and parts of the public could make governing more difficult, narrowing political space for a busy legislative agenda. A rapid resignation would also reset Labour’s immediate priorities toward internal cohesion and selection processes.
Comparison & data
| Event | Date |
|---|---|
| McSweeney resignation announced | 9 Feb 2026 |
| Andrew Marr comments on LBC | 9 Feb 2026 |
| Labour landslide election | 2024 (general election) |
The timeline shows how quickly the story moved from revelation to resignation and national broadcast comment within days. Rapid personnel shifts after high-profile controversies have historically increased instability in UK governments; the immediate metric to watch is support among Labour MPs and formal challenges or resignations at the top of the party.
Reactions & quotes
“I think it’s over for Keir Starmer. I would not be surprised to see him resign quite quickly now.”
Andrew Marr, broadcaster (LBC)
“The decision to appoint Peter Mandelson was wrong. He has damaged our party, our country and trust in politics itself. When asked, I advised the Prime Minister to make that appointment and I take full responsibility.”
Morgan McSweeney, resignation letter (reported)
“There must be a change in political direction and that comes from the very top.”
Labour backbench critic (Press Association report)
Unconfirmed
- Allegations that Lord Mandelson passed sensitive information to Jeffrey Epstein and that those links extended to officials connected to the Russian state remain unproven in public reporting and are not independently verified here.
- Andrew Marr’s forecast that Starmer will resign “in days” is a prediction and not a confirmed timetable; no formal resignation had been announced at the time of reporting.
Bottom line
The McSweeney resignation has transformed a personnel controversy into a full-blown political crisis for Sir Keir Starmer. Whether the episode results in an immediate leadership change depends on how quickly Labour’s parliamentary party coalesces around a course of action and how the prime minister manages internal and public pressure.
Key watch points are Starmer’s address to Labour MPs, any further resignations or endorsements from senior figures, and how quickly an orderly transition — if one happens — can be arranged. Even if the prime minister remains in post, the episode is likely to leave longer-term questions about vetting, adviser influence and party unity.
Sources
- Daily Express (UK news outlet reporting on resignation and broadcast comments)
- LBC (UK radio broadcaster — programme where Andrew Marr’s comments were aired)
- Press Association / PA Media (news agency reporting on MP reactions)