Keir Starmer’s decision to appoint Peter Mandelson as ambassador to the US keeps coming back to haunt him. It has now emerged that Mandelson was granted security clearance by the Foreign Office, despite concerns raised during the vetting process. Top Foreign Office civil servant Olly Robbins was sacked over these revelations.
Mandelson was controversial long before Starmer appointed him in 2024. A New Labour figure known as the “prince of darkness” due to his reputation as an adept but often ruthless and underhand political operator, Mandelson had already been embroiled in a number of scandals involving allegations of corruption. He was also known to have had a close relationship with convicted sex offender Jeffrey Epstein, as well as close business links in China.
Starmer fired him in September 2025 after emails were released showing Mandelson offering supportive messages to Epstein, who faced charges of soliciting a minor at the time. Further emails released by US officials suggested that Mandelson might have passed privileged and market-sensitive information to Epstein during the fallout of the financial crisis. In February 2026, the former ambassador was arrested on suspicion of misconduct in public office. He has denied criminal wrongdoing and has not been charged.
