Mandelson received sensitive Foreign Office briefings before vetting finished

The UK government has released over 1,500 pages of documents concerning Peter Mandelson's appointment as US ambassador. These documents, including emails and text messages, were published on the government's website and relate to exchanges between ministers, aides, and Mandelson prior to his ambassadorship from February to September 2025. This release revives a controversy that has previously weakened Prime Minister Keir Starmer's premiership, stemming from Mandelson's ties to Jeffrey Epstein. Previous document releases had indicated warnings about "reputational risks" associated with Mandelson's Epstein connections. The extensive publication is expected to have a significant impact, following earlier criticism of Starmer's judgment in appointing Mandelson, a figure with a history of controversial resignations. The scandal has already resulted in the departures of Starmer's chief of staff and director of communications.

Newly released documents concerning Peter Mandelson's potential appointment as ambassador to Washington reveal significant internal doubts and infighting within the Labour government. While initially sought to clarify ministers' knowledge of Mandelson's links to Jeffrey Epstein, the files primarily expose critical assessments of Prime Minister Keir Starmer and his cabinet by Mandelson and other senior figures. Mandelson expressed concerns about Starmer's leadership and the cabinet's execution, while others like Cabinet Office minister Pat McFadden and Pensions Minister Torsten Bell voiced skepticism about government policy and execution. The documents also touch on bureaucratic tangles and a perceived dismissiveness towards vetting procedures by Mandelson. Details regarding initial vetting concerns and Epstein's specific links remain largely undisclosed.

New government files reveal Peter Mandelson assured the British government it would "never regret" appointing him as ambassador to the United States, a pledge that proved incorrect within months. Mandelson, who had ties to Jeffrey Epstein and failed security checks, was appointed envoy to Washington during Donald Trump's second term. The release of over 1,500 pages of documents sheds light on the contentious decision, which has led to embarrassment for Prime Minister Keir Starmer, who fired Mandelson after nine months. Key details about why Mandelson failed security checks remain unclear, with some documents redacted or withheld due to ongoing police investigations into alleged misconduct. Mandelson also refused to hand over information from his personal phone.

Newly released documents reveal that Peter Mandelson received sensitive Foreign Office security briefings and discussed meetings with the head of MI6 before completing his developed vetting process for the Washington ambassador role. Mandelson believed he could access secret documents due to his privy councillor status, though officials later determined vetting was necessary. The documents also detail internal Labour criticism of Prime Minister Keir Starmer, including from Mandelson. Despite a 1,500-page release, crucial documents were withheld, with the Metropolitan police requesting some information be kept private due to potential future prosecutions. Concerns about Mandelson's associations and a loan were previously reported, but details on mitigating these issues are absent from the latest release.