Keir Starmer Faces Resignation Calls After Mandelson Vetting Failure Revealed

British Prime Minister Keir Starmer faced calls to resign on Thursday after The Guardian newspaper reported that Peter Mandelson, his former ambassador to the United States, had failed a security background check in late January 2025 but was appointed to the post anyway after Foreign Office officials overruled the vetting recommendation. A government spokesperson confirmed that the Foreign and Commonwealth Development Office had granted Mandelson "developed vetting" against the advice of UK Security Vetting, the government's screening agency. Mandelson was subsequently sacked from the ambassadorial role in September 2025 after documents released by a United States Congressional committee revealed the depth of his ties to convicted sex offender Jeffrey Epstein.

Foreign Office overruled vetting in 48 hours to save appointment According to The Guardian, Mandelson's clearance request was refused on January 28, 2025, days before he was due to take office, following a highly confidential background check. Starmer had already publicly announced the appointment before the vetting process was completed, placing the Foreign Office in a difficult position. Officials at the ministry then used a rarely used authority to override the negative recommendation, and within 48 hours Mandelson was informed that his accreditation was confirmed. At the time, the permanent secretary at the Foreign Office was Olly Robbins, and the Foreign Secretary was David Lammy, who now serves as Deputy Prime Minister and Secretary of State for Justice. In a letter sent in September 2025 to the Foreign Affairs Committee, both Robbins and Lammy stated that the accreditation process had followed standard procedures and that authorization had been given before Mandelson's inauguration, without disclosing that UK Security Vetting had recommended against the appointment. The government spokesperson said on Thursday that neither Starmer nor any other government minister had been aware of the override decision "until earlier this week," and that once informed, Starmer immediately instructed officials to establish the facts in order to update the House of Commons.

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Badenoch lists three resigning offences against Starmer Kemi Badenoch, Leader of the Opposition and leader of the Conservative Party, said Starmer is "definitely in resigning territory" and outlined three specific grounds for resignation during a campaign visit to Edinburgh. She argued that Starmer had misled Parliament by claiming full due process was followed, that he had falsely stated at a press conference in February 2026 that Mandelson had cleared security vetting, and that the public learned of the vetting failure through the press rather than through the parliamentary disclosure process Starmer had promised, which she described as a cover-up. „He misled parliament because he said full due process was followed and if Mandelson failed the vetting and was still appointed, then full due process wasn't followed.” — Kemi Badenoch via The Scotsman Ed Davey, leader of the Liberal Democrats, also called for Starmer's departure, saying the prime minister had committed a "catastrophic error of judgment." „Now it looks as though he has also misled Parliament and lied to the British public. If that is the case, he must go.” — Ed Davey via Al Jazeera The Green Party and Reform UK joined the calls for resignation, broadening the pressure beyond the two main opposition parties.

Criminal probe and Epstein files deepened the crisis before Thursday The vetting revelation is the latest development in a months-long scandal that has already forced the resignation of two senior government officials, including Starmer's Director of Communications and his Chief of Staff, Morgan McSweeney. British police searched Mandelson's two homes in London and western England and arrested him on February 23, 2026, on suspicion of misconduct in public office, releasing him on bail the following morning after more than nine hours of questioning. Mandelson has not been charged and has denied doing anything improper. The criminal investigation centres on allegations that Mandelson leaked sensitive government documents to Epstein while serving as a government minister, including during the 2008 financial crisis. Mandelson served in the cabinets of Prime Ministers Tony Blair and Gordon Brown and was a central figure in the modernisation of the Labour Party in the 1990s. He had previously resigned from government twice before his ambassadorial appointment — once in 1998 and once in 2001 — over separate controversies. Jeffrey Epstein died in prison in 2019 while awaiting trial on federal sex trafficking charges in the United States. Starmer has repeatedly apologised to the British public and to victims of Epstein's sex trafficking, characterising Mandelson's account of his relationship with Epstein as a "litany of deceit," while maintaining throughout that the proper vetting rules had been followed — a claim now directly contradicted by the Guardian's reporting.