MPs say 'red flags' were missed before Mandelson’s appointment as UK ambassador to US

Senior politicians from across the Commons on Monday said “red flags were missed or ignored” before Peter Mandelson was appointed the United Kingdom’s ambassador to the United States, as MPs held an emergency debate following the peer’s sacking.

Dame Emily Thornberry, chairwoman of the Foreign Affairs Committee, told the debate that "something went very wrong" given Lord Mandelson’s known links to convicted sex offender Jeffrey Epstein. Lord Mandelson was removed from the post last week after the publication of emails showing he sent supportive messages to Epstein while the financier faced jail in 2008.

The publication of the emails by Bloomberg came after Prime Minister Sir Keir Starmer had publicly expressed confidence in Lord Mandelson in Parliament. Sir Keir has said he did not know the full contents of the messages at that time and told MPs on Monday he would "never" have appointed Lord Mandelson had he been aware of the details now revealed. The prime minister decided to sack Lord Mandelson after reviewing the cache of emails.

Conservative leader Kemi Badenoch used the debate to sharply criticise Sir Keir, accusing him of "hiding from questions" and saying his standing had been "diminished" by the appointment. She also called on the prime minister to apologise to Epstein’s victims. The emergency debate was requested by Conservative MP David Davis, who said the episode had damaged the prime minister’s credibility.

Dame Emily said she had already sought answers from ministers about the vetting process that preceded the appointment and had received correspondence from Foreign Secretary Yvette Cooper. In a letter, Ms Cooper said the Foreign, Commonwealth and Development Office was not responsible for any failure to recognise risks, adding that the Cabinet Office had carried out due diligence and had not raised concerns with the Foreign Office. The letter said the Foreign Office had not been asked to contribute to the Cabinet Office’s assessment.

Those comments put renewed scrutiny on the Cabinet Office and Downing Street over how the decision to nominate Lord Mandelson was reached. MPs on Monday pressed ministers for clarity on who saw which documents and what checks were undertaken before the appointment was agreed.

Lord Mandelson, a former European trade commissioner and senior Labour minister who sits in the Lords as a peer, had been announced as the UK ambassador to the US shortly before the emails became public. The messages published by Bloomberg included supportive language to Epstein as he faced legal proceedings in 2008; politicians from several parties said the correspondence raised questions about Lord Mandelson’s suitability for a high-profile diplomatic role.

Sir Keir has repeatedly defended the appointment process as one that followed standard procedures but acknowledged on Monday that the outcome had been unacceptable given the new information. He has said he acted to remove Lord Mandelson once the email material was reviewed.

The debate takes place ahead of a state visit to the UK by US President Donald Trump, due to arrive on Tuesday evening. MPs from different parties said the timing heightened concerns about the vetting process for senior diplomatic appointments and the potential reputational damage to the UK.

Session speakers called for a review of procedures to ensure that potential reputational and safeguarding risks are identified and escalated appropriately in future appointments. Ministers agreed that lessons must be learned but resisted calls for immediate further resignations beyond Lord Mandelson's removal, saying a full accounting of the decision-making trail was needed.

The Commons exchanges mark the latest development in a fast-moving political controversy that has prompted questions about how information was handled between government departments and how rapidly senior appointments are vetted. MPs signalled they will continue to press the government for documentary evidence of the checks carried out by the Cabinet Office and for clarity on how ministers and officials interpreted those checks in deciding to proceed with the nomination.