MPs to vote on Starmer referral to Privileges Committee over Mandelson statements

MPs are due to vote on Tuesday on whether Sir Keir Starmer should be referred to the House of Commons Committee of Privileges over claims he misled Parliament about Peter Mandelson’s appointment as the UK’s ambassador to the United States.

The move follows a ruling by Commons Speaker Sir Lindsay Hoyle, who said on Monday that, having taken advice, he would allow the House to decide whether the matter should be investigated. According to Sky News, the debate is expected to begin no earlier than 12.30pm on Tuesday.

Starmer has denied misleading MPs. The dispute centres on statements he made defending Mandelson’s appointment, including his assertion that “due process” had been followed and, later, that “no pressure existed whatsoever” in relation to getting Mandelson into post.

Opposition parties argue that fresh evidence from Sir Olly Robbins, the former Foreign Office permanent secretary, raises serious questions about those claims and warrants a formal inquiry. A referral would not amount to a finding that the prime minister had misled the House. It would instead ask the seven-member, cross-party Privileges Committee to investigate whether his statements to MPs may have constituted a contempt of Parliament.

The row has become as much about ministerial accountability as about Mandelson himself. The central question for MPs is not whether the former ambassador’s appointment later proved politically damaging, but whether Starmer accurately described the process behind it, the extent of pressure applied by No 10 and what he knew about the security concerns at the time.

The latest escalation was triggered by Robbins’s evidence to the Foreign Affairs Committee on 21 April. He said there had been a “generally dismissive attitude” to Mandelson’s vetting, and described “constant pressure” and “very frequent” contact from the No 10 private office throughout January 2025. Robbins also told MPs that refusing clearance would have been “very difficult indeed”.

Those remarks were seized on by opposition MPs, who say they are hard to square with Starmer’s insistence that no pressure existed in relation to the decision itself.

Starmer has responded by arguing that the appointment followed the rules then in place for direct ministerial appointments, under which security vetting could be completed after an appointment was announced but before the person took up the post. He has also said he was never told the most important fact in the case: that UK Security Vetting had recommended Mandelson should not receive developed vetting clearance.

In a Commons statement on 20 April, the prime minister said he had learned only on 14 April this year that UKSV had recommended on 28 January 2025 that Mandelson be denied developed vetting clearance, and that Foreign Office officials granted the clearance the following day despite that recommendation. Starmer said neither ministers nor the then cabinet secretary had been told.

“I should not have appointed Peter Mandelson,” Starmer told MPs in that statement, adding that the recommendation against clearance “could and should have been shared with me”. He said that, had he known of it at the time, he “would not have gone ahead with the appointment”.

The prime minister has sought to use Robbins’s evidence in his defence as well as against his critics. At Prime Minister’s Questions on 22 April, Starmer said Robbins had made clear he did not feel pressure had affected his own judgment, and on that basis insisted that he had not misled the Commons.

Robbins’s evidence complicates Starmer’s account but does not directly disprove his claim about when he knew of the UKSV recommendation. The former mandarin told MPs that ministers are entitled to know when someone fails vetting, but he also defended the convention that detailed vetting matters are tightly held. He further disputed the simple description that Mandelson had been “denied vetting”, saying UKSV had made a recommendation that was then assessed within the department.

Mandelson’s appointment was announced by Downing Street on 20 December 2024. According to Starmer’s later statement, the security vetting process began on 23 December. Mandelson took up the Washington post in February 2025, after the clearance had been granted.

The appointment later became politically toxic. Mandelson was withdrawn as ambassador on 11 September 2025 after the Foreign, Commonwealth and Development Office said newly surfaced emails showed the “depth and extent” of his relationship with Jeffrey Epstein was materially different from what had been known when he was appointed.

Before the latest disclosures, official reviews had largely supported the government’s handling of the case. Sir Chris Wormald’s review in September 2025 concluded that appropriate processes had been followed, though Starmer has since said Wormald was not told that UKSV had recommended against clearance. In March this year, the government’s independent adviser on ministerial standards, Sir Laurie Magnus, declined to open an investigation, saying the public documentation available at that point indicated that “the relevant process for a political appointee was followed”.

That assessment now faces renewed scrutiny because of the evidence given by Robbins and the release of further material after Parliament forced disclosure through a Humble Address. A first tranche of documents was published on 11 March, and ministers have said a second tranche is still being prepared.

Conservative leader Kemi Badenoch has led the push for a privileges referral, arguing that Starmer’s explanations do not add up. Liberal Democrat leader Sir Ed Davey has called for Labour MPs to be given a free vote rather than being whipped to oppose an inquiry.

Whether the motion succeeds is likely to depend less on the argument itself than on parliamentary arithmetic. Labour’s Commons majority means the government is widely expected to have the numbers to defeat the proposal if it instructs its MPs to vote against it.

If MPs do back a referral, the Committee of Privileges would examine the evidence and report its findings to the House. If they reject it, Starmer will avoid an immediate formal parliamentary inquiry, but the vote is still set to prolong a damaging row over standards, judgment and transparency at the heart of government.