UKExplainer

How did Peter Mandelson fail security vetting but still get approved as US ambassador?

Keir Starmer has been busy explaining but key questions remain around the former US ambassador’s appointment

Peter Mandelson in London on Friday. Photograph: Carl Court/Getty
Peter Mandelson in London on Friday. Photograph: Carl Court/Getty

Downing Street has tried to do a lot of explaining, as has UK prime minister Keir Starmer himself. But there are still plenty of things we do not know about how Peter Mandelson failed security vetting, and what the prime minister did or did not know about it.

Was this an inexcusable failure or standard practice?

A fairly key question. Downing Street is clear: it is “staggering” that Mandelson failed vetting, and that the UK foreign office not only overruled this but told no one in No 10.

However, Ciaran Martin, a former top civil servant with past involvement in vetting work – and a close friend of the ousted Olly Robbins – said this was an oversimplification. Rather than vetting being a simple yes or no, he told the BBC, it was a balance of risks, and entirely standard for officials to decide whether this was acceptable.

Did Starmer mislead parliament, even unintentionally?

The prime minister told MPs that “full due process” had been followed in appointing Mandelson.

Asked if parliament had been misled, even if this was not the PM’s fault, No 10 appeared to accept this was possible, saying: “The prime minister feels that he should update parliament on Monday on the basis that parliament should have known about this and should now know about this.” That is not a “no”.

Should Downing Street have known earlier?

The perhaps obvious answer is: well, yes. But if you accept the idea of a No 10 operation kept entirely in the dark by its own foreign office, then even here there are elements to be questioned, such as the emergence of a journalist’s question to Downing Street’s then head of press in September last year asking about sources saying Mandelson did not clear vetting.

Did No 10 check this?

Its version is that officials “repeatedly asked for the facts of the case” but were simply not told.

Will Starmer have all the answers next week?

This remains uncertain. The prime minister is scheduled to address MPs in the Commons on Monday afternoon, and there will be no shortage of questions, not least from the various opposition party leaders who have already called on him to resign.

As far as can be ascertained, Downing Street is confident enough of the basic facts of the case to have asked Robbins, who was the head civil servant in the UK’s foreign office, to resign on Thursday night.

But a full and formal investigation into what happened, and why, has not yet begun, so we can expect Starmer to, when necessary, hide behind the need to wait for fuller information.

Was this ultimately all Downing Street’s fault?

This is as much a political question as anything else. But there is a plausible case for believing that the foreign office decided to overrule the worries about Mandelson for one very simple reason: Starmer had already named him as ambassador to Washington. – The Guardian