The Prime Minister’s Office confirmed on 20 April 2026 that Keir Starmer has detailed to Parliament the handling of security vetting information during the appointment of Peter Mandelson as Ambassador to the United States, including a UK Security Vetting recommendation made on 28 January 2025.
The statement was delivered in the House of Commons and outlined the sequence of events surrounding the appointment, vetting process, and subsequent dismissal of Peter Mandelson. The statement confirmed that developed vetting clearance was granted on 29 January 2025 despite an earlier recommendation to deny it.
The Prime Minister stated that key information was not shared with ministers, including himself and the Foreign Secretary, and that this information should have been made available to Parliament. The statement also confirmed that new processes have been introduced to ensure vetting is completed before appointments are announced.
Prime Minister’s Statement to Parliament
The Prime Minister addressed the House of Commons to provide updated information regarding the appointment and vetting process for Peter Mandelson. He confirmed that a fact-finding exercise was initiated on 14 April 2026 to establish the timeline and decision-making process.
The statement emphasised that the information now disclosed should have been available earlier to both ministers and Parliament, outlining the purpose of the address as a formal update.
Timeline of Mandelson Appointment
The appointment process began in December 2024, with the decision to appoint Peter Mandelson made on 18 December and announced on 20 December. Security vetting commenced on 23 December 2024 and continued into January 2025.
Key events include the UK Security Vetting recommendation on 28 January 2025 and the granting of clearance by Foreign Office officials on 29 January 2025, followed by Mandelson taking up his role in February 2025.
- Appointment decision: Confirmed on 18 December 2024 with announcement two days later
- Vetting period: Conducted between 23 December 2024 and 28 January 2025
- Clearance decision: Granted by officials on 29 January 2025 despite prior recommendation
UK Security Vetting Recommendation
UK Security Vetting conducted the formal vetting process, which included collecting information and interviewing the candidate on two occasions. On 28 January 2025, UKSV recommended that developed vetting clearance should be denied.
The Prime Minister confirmed that this recommendation was not followed by the Foreign Office, which retained final authority on granting clearance in this case.
Foreign Office Decision-Making Process
Foreign Office officials made the decision to grant developed vetting clearance on 29 January 2025. The statement confirmed that, for the Foreign Office, final decisions on vetting clearance are made internally rather than being binding from UKSV.
The Prime Minister stated that this authority has now been suspended following the discovery of the decision-making process and its implications.
- Decision authority: Foreign Office officials held final responsibility for clearance decisions
- Outcome: Clearance granted despite UKSV recommendation to deny
- Policy change: Authority to override recommendations has been suspended
Information Withholding from Ministers
The statement confirmed that the UKSV recommendation was not shared with the Prime Minister, the Foreign Secretary, or the Cabinet Secretary. It also stated that this information was not disclosed during subsequent reviews or parliamentary processes.
The Prime Minister indicated that the recommendation could have been communicated while maintaining confidentiality, and that this information should have been available during decision-making and oversight stages.
Parliamentary Disclosure and Committee Evidence
Evidence provided to the Foreign Affairs Select Committee in September 2025 stated that vetting had been conducted to the usual standard and that clearance had been granted. The statement confirmed that this evidence did not include reference to the UKSV recommendation.
The Prime Minister noted that the Foreign Secretary signed the statement without being informed of the recommendation, and that this omission affected the completeness of information provided to Parliament.
Changes to Appointment and Vetting Procedures
The Prime Minister confirmed that changes have been introduced to the appointment process following these events. These include requiring security vetting to be completed before any appointment is announced.
Additional due diligence requirements have been implemented, including pre-appointment interviews where risks are identified and summaries provided to the appointing minister.
Review of National Security Vetting System
An independent review into the national security vetting process has been initiated and will be led by Sir Adrian Fulford. The review will examine how decisions are made and how information is communicated within government.
Separate work has also been commissioned to assess any security concerns arising during Mandelson’s tenure, alongside a broader review of vetting procedures.
Timeline Indicators
| Indicator | Recent Movement | Context |
|---|---|---|
| Appointment date | December 2024 | Decision and announcement confirmed by Prime Minister’s Office |
| UKSV recommendation | 28 January 2025 | Recommendation to deny developed vetting clearance |
| Clearance decision | 29 January 2025 | Granted by Foreign Office officials despite recommendation |
Process Changes Overview
| Indicator | Recent Movement | Context |
|---|---|---|
| Vetting timing | Changed | Now required before appointment announcement |
| Decision authority | Suspended | Foreign Office override capability paused |
| Independent review | Initiated | Led by Sir Adrian Fulford to assess vetting system |
Ministerial Comments
Keir Starmer, Prime Minister said;
“I should not have appointed Peter Mandelson. I take responsibility for that decision.”
“This was information I should have had a long time ago, and it is information this House should have had.”
The Prime Minister’s statement provides a detailed account of the Mandelson appointment and the handling of security vetting information. It confirms that a recommendation to deny clearance was not followed and was not shared with ministers or Parliament. Changes to procedures and an independent review have been initiated following these events.
Sources: gov.uk, Prime Minister’s Office statement, House of Commons.
Prepared by Ivan Alexander Golden, Founder of THX News, an independent news organisation delivering timely insights from global official sources. Combines AI-analysed research with human-edited accuracy and context.
