Keir Starmer is to address the Commons this afternoon over the appointment of Peter Mandelson as ambassador to the US, after it emerged that the Labour grandee was approved by the Foreign Office despite failing internal vetting.
Following an internal fact-finding review, No. 10 are said to be “confident it will show he was kept in the dark over the details of the process until Tuesday night and therefore did not mislead Parliament”, said The i Paper.
What happened?
Mandelson, a Labour veteran, has been a central figure in the party since the 1980s. He played a key role in New Labour and the 1997 landslide election victory, was MP for Hartlepool and held ministerial positions but was twice forced to resign.
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Keir Starmer appointed Mandelson as the UK’s ambassador in Washington in December 2024, but he was sacked last September, after Downing Street said new information about the extent of his relationship with Jeffrey Epstein had emerged.
But it’s since transpired that in January 2025 he had failed a “developed” security vetting carried out by UK Security Vetting (UKSV), a division of the Cabinet Office. The decision to overrule the UKSV was made by the Foreign Office without Downing Street’s knowledge, according to reports.
Civil servants at the Foreign Office were able to override security warnings by deploying a rarely used, high-level authority to grant clearance despite a recommendation to deny it. According to The Guardian, they acted on the understanding that the prime minister wanted the appointment to proceed.
Did Starmer know?
The so-called Mandelson files released so far show that Starmer was warned of the reputational dangers of the appointment, but there was no mention in any documents that Mandelson did not pass the security vetting process. More files are yet to be released.
At least two senior civil servants knew several weeks ago that Mandelson had failed security vetting for his US ambassador role, according to Sky News. A Cabinet Office spokesperson said that they didn’t pass the information to Starmer because they were waiting for legal checks on what information could be released.
Starmer said he was “absolutely furious” that he wasn’t made aware that Mandelson had failed the security vetting and described the situation as “completely unacceptable”. He insisted that he would have reversed the appointment had he known. Beth Rigby, Sky News’ political editor, said that although the PM is “normally not one to show emotion”, he was “near apoplectic”.
Who else knew?
The Foreign Office’s top civil servant, Olly Robbins, was “one of the few people who knew the true outcome of the vetting process”, said The Telegraph. He discovered this in January 2025 but decided to override the recommendation not to approve the peer for the US ambassador role, although he is thought to have “harboured private concerns about the appointment”. Robbins was sacked on Thursday after the revelations became public.
As the Foreign Secretary, David Lammy had to formally give approval for Mandelson, to be given the go-ahead, but did so against his own wishes and was apparently unaware of the failed vetting, said the broadsheet. Allies of the foreign secretary, Yvette Cooper, said she did not find out until the story broke on Thursday, two days after the PM found out.