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UK releases first files on Mandelson's appointment as US ambassador

Published by Global Banking & Finance Review

Posted on March 11, 2026

4 min read

· Last updated: April 1, 2026

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UK releases first files on Mandelson's appointment as US ambassador
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LONDON, March 11 (Reuters) - Britain's government published on Wednesday the first documents covering the appointment of Peter Mandelson as ambassador to Washington, reviving questions about Prime

Released UK files reveal concerns on Mandelson's appointment as US ambassador

Controversy Surrounding Peter Mandelson's Appointment

By Elizabeth Piper, Andrew MacAskill and Alistair Smout

LONDON, March 11 (Reuters) - Prime Minister Keir Starmer was warned of risks in making Peter Mandelson Britain's ambassador to Washington, documents released on Wednesday showed, reviving questions about his judgment in appointing a man close to Jeffrey Epstein.

The publication of the first tranche of documents covering the vetting of Mandelson, who is under police investigation for allegedly leaking government documents to the late sex offender, does little to reduce the pressure on Starmer, who is under fire over the appointment and a series of policy U-turns.

The more than 100 pages of documents suggested concerns were raised about the "reputational risks" in appointing Mandelson because of his friendship with Epstein but also over his previous resignations from government and his support for closer ties with China.

Starmer sacked Mandelson from what is considered the most prestigious posting in Britain's diplomatic service in September, when the depth of his friendship with the convicted sex offender started to become clear.

Concerns About 'Reputational Risks'

After ceding to pressure from the opposition Conservative Party last month to release the documents, the government published the first tranche but suggested more revealing exchanges could not yet be produced due to the police investigation.

Details from the Released Documents

A document labelled "Advice to the prime minister, checks conducted on 4 December, 2024", said: "After Epstein was first convicted of procuring an underage girl in 2008, their relationship continued across 2009-2011, beginning when Lord Mandelson was business minister and continuing after the end of the Labour government. Mandelson reportedly stayed in Epstein's house while he was in jail in June 2009."

Fact-Finding and Internal Discussions

In a summary of a fact-finding call between Starmer's general counsel and national security adviser Jonathan Powell in September, a document said Powell had found the appointment process "weirdly rushed".

Powell said he had concerns about Mandelson's "reputation” in conversations with Morgan McSweeney, then Starmer's chief of staff. Another document dated December 11, 2024, said Starmer's director of communications was happy with Mandelson's responses to questions about his relationship with Epstein.

More Documents to Come

Despite Starmer's defence that Mandelson had lied to him over the extent of his relationship with Epstein, in parliament some opposition lawmakers said the documents showed the prime minister had known about their ties for some time.

Parliamentary Reactions and Severance Pay

"We're supposed to believe that the prime minister, who was once the chief prosecutor in this country, couldn't see through this nonsense," Conservative lawmaker Alex Burghart said. "It beggars belief."

Several lawmakers expressed shock over Mandelson's demands for severance pay. He had asked for 547,201 pounds ($733,523) in compensation after being fired but was given 75,000 pounds, in what the government described as a "reasonable settlement".

Future Releases and Government Response

Further documents will be released at a later date, papers which the prime minister's team say will prove Mandelson lied to Starmer about the extent of his relationship with Epstein before his appointment as ambassador in December 2024.

Darren Jones, Starmer's chief secretary, told parliament that the government had learned lessons from the appointment and had taken steps "to address weaknesses in the system".

Background on Mandelson and Epstein Links

Mandelson, a government minister when Labour was previously in power more than 15 years ago, quit the House of Lords, the upper house of parliament, in February over his links to Epstein. He was arrested last month on suspicion of misconduct in a public office, and later released on bail.

Files released by the U.S. Justice Department in January included emails suggesting Mandelson had leaked government documents to Epstein, and that the convicted offender had recorded payments to Mandelson or his then-partner, now husband.

Mandelson has said he does not recall having received payments. He has not commented publicly on allegations he leaked documents, and did not respond to messages seeking comment.

($1 = 0.7460 pounds)

(Reporting by Elizabeth Piper, Andrew MacAskill, Alistair Smout, William James and Sam Tabahriti, editing by Alex Richardson and Gareth Jones)

Key Takeaways

  • The UK government released the first batch of documents—including a Cabinet Office due-diligence report warning of reputational risk—related to Peter Mandelson’s appointment as U.S. ambassador. (theguardian.com)
  • The Metropolitan Police investigation continues into Mandelson for alleged misconduct in public office, including leaking market‑sensitive information to Epstein. (theguardian.com)
  • Despite the disclosures, pressure remains high on PM Starmer as allies downplay the documents, but further releases are expected to reveal that Mandelson may have lied about his relationship with Epstein. (apnews.com)

References

Frequently Asked Questions

Why has Peter Mandelson's appointment as US ambassador caused controversy?
His appointment has raised questions due to Mandelson’s ties to Jeffrey Epstein and allegations of leaking government documents.
What do the newly released documents about Mandelson contain?
The documents cover the initial vetting process for Mandelson and mention a police investigation into possible leaks to Epstein.
How has Prime Minister Keir Starmer responded to the Mandelson situation?
Starmer's team has minimized the importance of the released files and stated more evidence will become available later.
Has Peter Mandelson commented on the allegations against him?
Mandelson has not publicly commented on the allegations of leaking documents or receiving payments from Epstein.
Will more documents about Mandelson’s appointment be released?
Yes, further documents that may clarify the situation are expected to be published at a later date.

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