Keir Starmer could be forced to disclose confidential vetting documents from Peter Mandelson’s appointment as US ambassador, with the Tories set to trigger a rare Commons vote to compel their release.
Labour MPs have indicated they are not prepared to oppose the Conservative motion – known as a humble address – that would disclose the details of the vetting process and what if anything was known about Mandelson’s links to the disgraced financier Jeffrey Epstein.