Labour leader Keir Starmer detailed the timeline surrounding the appointment of Lord Mandelson as the new ambassador to the United States. His remarks came during a session in the House of Commons.
Key Dates in the Appointment Process
Starmer’s account highlights several critical dates in the appointment process:
- December 10, 2024: Mandelson answered questions as part of a due diligence exercise conducted by the Cabinet Office.
- December 11, 2024: Starmer received final advice regarding Mandelson’s suitability.
- December 18, 2024: Starmer made the decision to formally appoint Mandelson.
- December 20, 2024: The appointment announcement was made.
- December 23, 2024: The security vetting process for Mandelson commenced.
Security Vetting Procedures
Starmer explained that it is customary for security vetting to occur after a direct ministerial appointment is made but prior to the official start of the new role. This procedure was corroborated by former Cabinet Secretary Chris Wormald during a November 2025 hearing of the Foreign Affairs Select Committee.
Following the termination of Mandelson’s position, Starmer amended the protocol. Now, he stated, an appointment announcement cannot occur until the requisite security vetting has been successfully completed.
Starmer’s statements emphasize the significance of the vetting process in maintaining the integrity of governmental appointments. The timeline he provided offers clear insights into the administrative protocol followed during Mandelson’s appointment.
