Committee publication · Correspondence · 12 September 2025 · HC 385

Letter to the Foreign Secretary, relating to the appointment of HM Ambassador to Washington, dated 12.09.25

Inquiry: Work of the Foreign, Commonwealth and Development Office

Summary

Chair of the Foreign Affairs Committee Emily Thornberry writes to Foreign Secretary Yvette Cooper following Lord Mandelson's departure as Ambassador to Washington due to revelations about his relationship with Jeffrey Epstein. The letter raises serious concerns about whether security vetting procedures were properly followed, whether decisions to overlook concerns were made outside the FCDO, and requests detailed answers on the appointment process and vetting timeline.

Key findings

Lord Mandelson's appointment as Ambassador to Washington ended following media revelations about his connection to Jeffrey Epstein.
Reports suggest security concerns were overlooked during the appointments process and decisions may have been made by actors outside the Foreign Office, possibly senior No. 10 officials.
The Committee seeks clarity on what security concerns were raised, FCDO's response, whether conditions were imposed on the ambassadorial remit, and whether vetting procedures were suspended or altered.
The Chair previously requested the opportunity to question Lord Mandelson before his departure in February but this was repeatedly denied by the Foreign Office.
The Committee calls for improved pre-appointment scrutiny procedures to prevent similar incidents in future.

Tone

Adversarial

Topics

diplomatic-appointmentssecurity-vettingforeign-affairsparliamentary-scrutiny

Key actors

Emily Thornberry MP, Yvette Cooper MP, Lord Mandelson, Jeffrey Epstein, Foreign Affairs Committee, FCDO, No. 10

Notable line

“It is so disappointing that the first opportunity I have to write to you as Foreign Secretary follows the departure of one of this country's most important diplomatic appointments in light of shocking …”

Key Quotes

“It has been suggested by a number of media outlets that security concerns were overlooked during the appointments process, and that such decisions may have been taken by actors outside of the Foreign Office, perhaps senior people in No.”
— Emily Thornberry MP · Raising initial allegations about the appointment process

“These allegations are potentially very serious, with implications far beyond newspaper gossip.”
— Emily Thornberry MP · Emphasizing the gravity of the concerns

“As Chair of the Foreign Affairs Select Committee, it is my responsibility to ensure that the House of Commons receives a thorough response to a number of important unanswered questions.”
— Emily Thornberry MP · Justifying the committee's formal inquiry

“This request was repeatedly denied by the Foreign Office – and despite suggesting that a session could take place once he was in post, as it had for Lord (Ed) Llewellyn in 2016/7, the FCDO could not find an opportunity for Lord Mandelson to appear in the intervening 7 months.”
— Emily Thornberry MP · Criticizing lack of pre-appointment scrutiny opportunity

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Source · parliament.uk record ↗