Five key questions: who overruled decision to deny Mandelson security clearance?

Ministers and civil servants face scrutiny after revelation Foreign Office overruled vetting procedure for US ambassador appointment Revealed: Mandelson failed vetting but Foreign Office overruled decision Officials debate withholding Mandelson vetting documents from parliament The revelation that Peter Mandelson failed his security vetting clearance, only for the decision to be overruled by the Foreign Office so he could take up his post as ambassador to the US, raises a number of questions. According to multiple sources, Mandelson was initially denied clearance in late January 2025 after a developed vetting process, a type of highly confidential background check carried out by UK Security Vetting (UKSV), a division of the Cabinet Office. By that stage he had already been announced as Keir Starmer’s pick for ambassador in Washington. Within two days, the Foreign Office had overruled the UKSV decision, granting him clearance despite the recommendation from security officials. It is not known who made the decision to overrule security officials, or why. According to multiple sources, senior government officials have been considering whether to withhold from parliament sensitive docu