As revelations mount and accusations fly, prime minister prepares for MPs’ anger and Olly Robbins’ testimony early next week

A decision to go against the recommendation of the vetting agency was taken by officials in the Foreign Office, spokesperson says.

Speculation over the prime minister’s future dominates UK front pages after the Guardian revealed Peter Mandelson failed his security vetting

The PM is facing calls to resign over the revelation that Lord Mandelson did not pass security checks.

How did the PM’s chosen US ambassador fail security vetting but still get approved, what exactly did he know, and who is to blame?

PM says it is ‘staggering’ and ‘unforgivable’ that he was not told Mandelson had failed security vetting. Lucy Hough speaks to the Guardian’s head of investigations, Paul Lewis

Exclusive: Officials have spent weeks debating whether or not to release highly sensitive information about the affair

As revelations mount and accusations fly, prime minister prepares for MPs’ anger and Olly Robbins’ testimony early next week

Inquiries into who knew what, and when, will be pored over in coming weeks and could ultimately decide Starmer’s fate

PM said he was ‘staggered’ not to have been told that Peter Mandelson had failed his security vetting before becoming ambassador to the US

The prime minister’s leadership is still in the spotlight after Mandelson was appointed US ambassador after he failed security vetting

Ahead of a showdown with MPs, prime minister looks like a man who is not really in control in his own government

Prime minister to deliver high-stakes statement to MPs over vetting controversy that has put his position in peril

PM to give Commons statement on Monday, a day before sacked civil servant Olly Robbins tells his side of the story

Downing Street takes unusual step of releasing document ahead of PM’s Commons showdown over Mandelson scandal

Keir Starmer faces intense scrutiny from MPs over the Mandelson scandal amid growing calls for his resignation.

The PM tells the Commons that if he had known the peer failed security vetting he would not have been appointed.

Despite his explanation and the need for political stability, the PM is still unpopular – and Olly Robbins has yet to give his side of the story

PM admits he made mistake in choice of ambassador as he makes high-stakes statement to parliament over scandal