A McSweeney Mandelson probe is underway after officials asked Morgan McSweeney to hand over private messages on his personal phone. The McSweeney Mandelson probe focuses on texts about Lord Mandelson and his controversial ambassadorial appointment. Investigators want to examine whether proper vetting took place before his posting.
Cabinet Office officials requested that McSweeney provide all relevant communications. The messages could include exchanges with Mandelson or other government officials, including Keir Starmer. Any texts McSweeney shares may now enter the public record.
The inquiry follows the reported theft of McSweeney’s Downing Street phone, which critics argue may have concealed key messages. Scotland Yard reopened the case and is reviewing CCTV footage near Westminster to gather additional details.
Lord Mandelson lost his ambassadorial role last September after links to Jeffrey Epstein emerged. Investigators revealed he shared market-sensitive information during the 2008 financial crisis. McSweeney faced criticism for supporting Mandelson’s appointment despite these concerns.
Parliament forced the government to release documents detailing Starmer’s knowledge of Mandelson’s background. MPs aim to determine whether officials overlooked risks or ignored warning signs.
Scotland Yard asked McSweeney to provide a formal statement about the alleged phone theft. The police examined CCTV footage to confirm his story. The reported theft may have permanently erased messages McSweeney sent in the lead-up to Mandelson’s posting.
Questions remain about McSweeney’s second personal phone. Observers note he may have deleted messages or used disappearing functions on WhatsApp, which automatically removes texts after set periods.
Starmer denied claims that McSweeney staged the theft to hide communications. Meanwhile, Kemi Badenoch and other critics demanded that McSweeney clarify inconsistencies in his account.
Labour feared a humble address motion could force disclosure of all emails and messages related to the appointment. No 10 held multiple meetings to plan how to handle such requests.
On 20 October 2025, McSweeney reported his government phone stolen but gave police the wrong location. This error prevented CCTV recovery, and authorities closed the case. Officials did not reveal whether the phone’s tracking system was used.
The Cabinet Office also asked ministers and former staff to provide messages relevant to the inquiry. All parties are cooperating to compile information. A spokesperson confirmed that the government is complying fully with the Humble Address and assisting Scotland Yard at pace.
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