Lord Mandelson: Response to Humble Address

Alex Burghart Excerpts

Monday 16th March 2026 Commons Chamber

[Alex Burghart (Brentwood and Ongar) (Con)]

(Urgent Question): To ask the Chief Secretary to the Prime Minister if he will make a statement on the Government’s compliance with the Humble Address of 4 February 2026 relating to the appointment of Peter Mandelson as His Majesty’s ambassador to the United States of America.

[The Chief Secretary to the Prime Minister (Darren Jones)]

I updated the House last Wednesday on the Government’s response to the Humble Address motion of 4 February, after the first tranche of documents were laid in both Houses in response to that motion. The Government have been clear that they are committed to publishing all documents relevant to the Humble Address, and that further material will be published in due course as officials work through its full scope.

The first tranche, as the title of the document made clear, represented,

“Part of a Return to an Address of the Honourable the House of Commons dated 4 February 2026”.

It responded directly to a number of specific elements contained in that motion, namely papers relating to Lord Mandelson’s appointment as His Majesty’s ambassador and the discussions that subsequently led to his dismissal. As the Government have said previously, there are specific documents that we would like to disclose but which the Metropolitan police has asked us not to in order to avoid prejudicing the ongoing criminal investigation into Peter Mandelson. The Government have agreed to that request. We will publish those documents in the future once the Metropolitan police has confirmed that it will no longer prejudice its investigation.

As a consequence of that, and as I set out to the House on 11 March, the Government have therefore taken the extraordinary step, as agreed with Mr Speaker, of briefing the Chair of the Public Administration and Constitutional Affairs Committee, the hon. Member for North Dorset (Simon Hoare), on terms agreed by the Metropolitan police to ensure that there is as much transparency to the House as possible.

As the House understands, the Government must carefully assess the risk of prejudicing UK national security or international relations posed by the release of any official documents. Again, this process is subject to parliamentary oversight. Any such material will be and is in the process of being referred to the Intelligence and Security Committee of Parliament. I thank the Committee for its assistance and can confirm that this process was also followed regarding the first tranche of material published last week. Outside of this arrangement, the important and well-established constitutional principle that national security and international relations judgments are ultimately for the Government has not changed.

We are continuing the disclosure process for other documents across Government within the scope of the address. Given the breadth of the motion agreed by the House and the large number of materials and Departments involved, this process will take time and necessarily requires careful consideration. Where relevant documents are held, they are being prepared for release through an established process, including the appropriate checks relating to national security, international relations, legal privilege and the protection of personal data.

The Government have acknowledged that the documents published reveal that the appointment process fell short of what is required. As previously set out, the independent adviser looked last week at the process and concluded that he saw no grounds for the investigation that the shadow Chancellor of the Duchy of Lancaster, the hon. Member for Brentwood and Ongar (Alex Burghart), has requested, but as the Prime Minister set out this morning, the inherited process itself was not strong enough. That is why the Prime Minister has already strengthened the process and is committed to strengthening it further in the future. This forms part of wider changes that the Government are bringing forward to improve the system, including a review by the Ethics and Integrity Commission relating to financial disclosures, transparency around lobbying, and the business appointment rules, alongside a review of the national security vetting system.

As I have said, and I know Members across the House will agree, Jeffrey Epstein was a disgusting individual, and Peter Mandelson’s decision to put their relationship before his victims and the vulnerable was reprehensible. That is why there is cross-party consensus across the House for transparency and accountability and why the Government are committed to publishing all material relevant to the Humble Address. I will continue to keep the House updated as a matter of priority, as I have done to date, and I commend this statement to the House.

[Alex Burghart]

Since last Wednesday, it has become increasingly clear that either the Government did not follow due process in their appointment of Peter Mandelson or that they have not disclosed all the relevant documents. In different terms, either the Prime Minister’s assurances that full due process was followed were misleading, or the Government have not complied with the Humble Address. Either would be a contempt of Parliament.

Last Wednesday, the Chief Secretary to the Prime Minister said:

“All the documents that are available in relation to Peter Mandelson’s appointment and dismissal are published…today, subject to those that have been held back by the Metropolitan police.”—[Official Report, 11 March 2026; Vol. 782, c. 371.]

But many, many documents are missing. I have detailed 56 documents in a letter that I sent him. To give a few examples, there is no prime ministerial readout on the advice that the Prime Minister received. This is a breach of protocol. A prime ministerial decision, even if made orally, should be formally recorded. Where is that record? It starts to stink of the sofa government that we had under Tony Blair.

There are no minutes of any meeting at which this appointment was discussed, by anyone, at any time. Were there really no meetings about this? Most suspiciously of all, we have no material from the Prime Minister, from his chief of staff or from Peter Mandelson: no box returns, no emails, no forms, no WhatsApps—nothing. It is as though their fingerprints have been forensically removed.

To narrow this down, on 11 November 2024 the Cabinet Secretary said that if the Prime Minister wanted to make a political appointment, the civil service would

“develop a plan for…the necessary security clearances and do due diligence on any potential Conflicts of Interest”.

That was the process, so let me ask the Chief Secretary two very specific questions. First, did Peter Mandelson receive security clearance, and if so, on what date? There was no such document in the release. Secondly, did Peter Mandelson make a full declaration of his interests? Again, there was no such document in the release.

I remind the Chief Secretary that noting the existence of a document does not prejudice an investigation in any way. The Government have already told us about one document that they are holding back at the request of the Met police; they are more than able to tell us about others. It is time for the Government to level with us. What is missing, and why?

[Darren Jones]

As I informed the House last week, the documents that pertain to tranche 1 are the documents the Government own, and they have been published in line with the Humble Address. The shadow Minister asks about the process followed for the appointment of Peter Mandelson. As the Prime Minister and the Government have said, the process that was followed was the process that was inherited; however, this has shown that that process is not sufficient, which is why it is being strengthened.

The shadow Minister made reference to questions about WhatsApps and other messages. I can confirm that those types of documents will be subject to a further tranche being published in due course. He also asked me about security clearance for Peter Mandelson. I refer him to the answer I gave last week in respect of that question, and to further comments from the Foreign Office.