ShareSaveAdd as preferred on GoogleEPAMPs have voted against a parliamentary investigation into whether Sir Keir Starmer misled the Commons over the vetting of Lord Mandelson for his appointment as the UK's ambassador to the US.
The prime minister has denied accusations he misled MPs over the process relating to Lord Mandelson's appointment to the role, which he took up in February 2025.
But Conservative leader Kemi Badenoch brought a motion outlining three possible points on which Sir Keir may have misled MPs and calling for him to be referred to the Commons Privileges Committee for investigation.
Some 223 MPs voted to refer the prime minister and 335 against, giving a majority of 112.
The motion, led by Badenoch but also supported by Liberal Democrat leader Sir Ed Davey, as well as SNP, DUP and independent MPs, set out three possible areas where the prime minister may have misled the House of Commons.
The first was his insistence that "full due process" was followed in Lord Mandelson's appointment as ambassador to the US.
The second was his claim in the Commons last week that Lord Mandelson's position "was subject to developed vetting".
The third was on the question of whether pressure was applied on the Foreign Office to approve the appointment.
