Sir Olly Robbins, recently dismissed by Prime Minister Keir Starmer, delivered compelling testimony before the foreign affairs committee, highlighting intense pressure from Downing Street to expedite Peter Mandelson’s appointment as UK ambassador to the United States.
Urgent Push for Mandelson’s Washington Posting
Sir Olly, a seasoned 51-year-old civil servant who assumed the role of permanent under-secretary at the Foreign Office on January 8, 2025, described inheriting a high-stakes situation. Mandelson’s appointment had been announced a month earlier by the Prime Minister, already approved by the King and acknowledged by the White House.
He explained to MPs: “I’m afraid I walked into a situation in which there was already a very, very strong expectation … that he needed to be in post and in America as quickly as humanly possible.” Downing Street had urged his predecessor to proceed “at pace” ahead of President Donald Trump’s January 20 inauguration. Throughout January, officials faced relentless inquiries from No 10, creating an unmistakable demand to finalize the process swiftly.
Sir Olly noted uncertainty about the direct involvement of the Prime Minister’s then-chief of staff, Morgan McSweeney—a protégé of Lord Mandelson—in the pressure campaign. He recalled handover discussions suggesting urgency but did not confirm specific phrasing attributed to Sir Philip Barton, McSweeney’s predecessor contact.
Downing Street’s Dismissive Stance on Security Protocols
In a submitted letter, Sir Olly underscored No 10’s commitment to the appointment, defying standard guidelines to secure clearance before announcements. The Cabinet Office even questioned the need for developed vetting (DV) given Mandelson’s status as a peer and Privy Counsellor. The Foreign Office insisted on proceeding with checks.
Mandelson’s posting was publicized well before vetting concluded, allowing access to classified briefings amid ongoing reviews—a move Sir Olly characterized as dismissive of protocols.
Addressing Vetting Concerns
Central to the controversy, Sir Olly approved Mandelson’s DV clearance on January 29 following a briefing from Foreign Office security head Ian Collard. UK Security Vetting (UKSV) flagged borderline issues but leaned toward denial. However, security experts deemed the risks manageable and mitigable.
Sir Olly clarified he never overruled UKSV, as claimed by No 10, having received only an oral summary without formal rejection documentation. The concerns, unrelated to Mandelson’s past association with Jeffrey Epstein, remained confidential.
Confidentiality and Notification Delays
Despite the swift clearance, Sir Olly did not immediately notify No 10, citing strict confidentiality rules within the vetting process. He emphasized: “My understanding of custom, practice and guidance is that the decision-making within the box of the vetting process must remain entirely confidential.”
This omission, discovered later amid the Epstein scandal leading to Mandelson’s dismissal, contributed to Sir Olly’s sacking. He viewed demands for disclosure as a “dangerous misunderstanding” of protocols.
Diplomatic Risks and Early Announcement Critique
Sir Olly acknowledged that blocking the appointment post-process would strain UK-US ties, potentially drawing public comment from the incoming Trump administration. He stressed awareness of the broader implications for government and national interests.
While defending his team’s judgment, he criticized the premature announcement despite known reputational risks: “I regret that this process was not done before announcement. I regret that the due diligence process … didn’t colour the Prime Minister’s judgment.”
Additional Revelations and Sacking Fallout
Sir Olly disclosed No 10’s private advocacy for Matthew Doyle—later disgraced over paedophile links—as a potential ambassador. Expressing deep sadness over his dismissal from a cherished role, he hinted at unfamiliar “HR territory” and withheld details of his final exchange with the Prime Minister last Thursday.
He lamented not addressing perceived accountability issues beforehand, leaving open the possibility of legal recourse.

