The most senior civil servant in Britain’s Foreign Office was sacked Thursday night. On Friday, the prime minister declared himself “absolutely furious.” And across Westminster, a growing chorus — including from his own party — wants Keir Starmer gone.

The trigger is a broken accountability chain at the heart of a G7 government. Security officials recommended against granting Peter Mandelson clearance to serve as UK ambassador to Washington. The Foreign Office overruled them. Starmer appointed Mandelson anyway. And the prime minister’s defense, repeated with increasing force, is that nobody told him.

That defense is now collapsing under scrutiny from every direction.

The Vetting Failure

Mandelson was announced as ambassador in December 2024, before in-depth security vetting had been completed. He took up the post in February 2025.

UK Security Vetting had recommended that Mandelson not receive “developed vetting” clearance, the highest tier of security access in the British system. The process, which is believed to cost at least £80,000 per person according to The Independent, scrutinizes finances, personal relationships, foreign contacts, and associations with convicted criminals.

Mandelson’s long friendship with Jeffrey Epstein was a known concern. Staff had warned Starmer that the connection posed a “reputational risk,” according to government documents released under parliamentary pressure in March 2025.

Despite this, Foreign Office officials overruled the security recommendation and granted clearance. Who gave that order remains unclear.

Olly Robbins, the Foreign Office’s most senior civil servant — who had been in the job for just two weeks at the time — was effectively dismissed by Starmer on Thursday night. A former senior official, Ciaran Martin, told the BBC that Robbins appeared to have been made a scapegoat, arguing that vetting is a “risk assessment” rather than a simple pass-or-fail, and that officials routinely weigh whether the risk is acceptable.

‘Staggering and Unforgivable’

Speaking to journalists in Paris on Friday, where he was co-hosting a summit on the Strait of Hormuz, Starmer did not minimize the situation.

“That I wasn’t told that Peter Mandelson had failed security vetting when he was appointed is staggering,” he said. “That I wasn’t told that he had failed security vetting when I was telling Parliament that due process had been followed is unforgivable.”

He pledged to address Parliament on Monday with “all the relevant facts in true transparency.”

The problem is that Starmer had repeatedly assured lawmakers that “due process” was followed. If the vetting system recommended rejection and the Foreign Office overrode that without informing Downing Street, the prime minister may have misled Parliament — inadvertently or otherwise.

Liberal Democrat leader Ed Davey has called for the Commons Privileges Committee to investigate whether Starmer intentionally misled Parliament — the same mechanism used to hold Boris Johnson to account over the Partygate scandal.

A Closing Circle of Critics

Conservative leader Kemi Badenoch was blunt. “This story does not stack up. The prime minister is taking us for fools,” she said. “All roads lead to a resignation.”

She pointed to reporting that journalists had informed Downing Street about the failed vetting as early as September 2025 — a claim that, if true, would blow apart Starmer’s timeline.

More damaging is the erosion from within. Scottish Labour leader Anas Sarwar stood by his earlier call for Starmer to resign. “The Mandelson scandal was the tipping point for me,” he said, calling Mandelson “a traitor to his party and country.”

The SNP, Green Party, and Reform UK have joined the calls. And Labour’s own Emily Thornberry, chair of the Foreign Affairs select committee, has raised pointed questions about whether the Foreign Office was acting on direction from elsewhere — an inquiry that could implicate ministers rather than just civil servants.

A Credibility Crisis

Mandelson was sacked in September 2025 after US Department of Justice documents revealed he had shared potentially market-moving government information with Epstein in 2009. He was arrested on February 23 this year on suspicion of misconduct in public office and released without bail. He denies wrongdoing and has not been charged.

Starmer has apologized to the British public and to Epstein’s victims for what he called “Mandelson’s lies.” But the question now is whether the prime minister’s insistence that the system failed him — rather than the other way around — can survive parliamentary scrutiny on Monday.

Labour faces local and regional elections on May 7, where the party is expected to perform poorly. A leadership challenge could follow. The Mandelson affair has already cost Britain its ambassador to Washington and the top civil servant at the Foreign Office. Whether it also costs the prime minister his job may depend on whether his own MPs find “nobody told me” persuasive enough.

Sources