The Cabinet Office’s most senior civil servant is facing MPs over the process that saw Lord Mandelson become Britain’s ambassador in Washington DC.

Cat Little is giving evidence to The Foreign Affairs Select Committee.

On Monday, the Prime Minister appeared in the House of Commons and blamed officials for not telling him until last week that the Peer had failed security checks.

Lib Dem leader and MP for Kingston and Surbiton Sir Ed Davey thinks Sir Keir Starmer’s position is untenable: