Mandelson WhatsApp leaks expose internal Labour fractures and Starmer leadership doubts
Files released following Mandelson’s dismissal detail concerns over economic confidence, cabinet infighting, and calls for a more ‘Trumpian’ political style.
A significant release of documents related to Peter Mandelson’s appointment as UK ambassador to the United States has revealed private WhatsApp exchanges in which the former diplomat criticised Prime Minister Keir Starmer’s leadership style. The messages, exchanged with senior cabinet minister Pat McFadden, depict a government described as “beleaguered and bereft” of decisive direction, with Mandelson suggesting Starmer should adopt a more “Trumpian” approach to risk-taking.
The communications, part of a vast tranche of data voted for release by MPs in February, show Mandelson expressing deep concern that businesses were losing confidence in the UK economy. Following the Office for Budget Responsibility’s downgrades and the government’s subsequent welfare cuts, Mandelson texted McFadden that “confidence is being lost,” arguing that the administration lacked the “panache” and “verve” necessary to turn around Britain’s fortunes.
Mandelson’s critiques extended to the party’s internal dynamics, where he accused former Prime Minister Gordon Brown of attempting to undermine Starmer to benefit Deputy Prime Minister Angela Rayner. While he acknowledged that Rayner and Ed Miliband were not serious challengers, he characterised Brown’s actions as an “instrument of destabilisation.” The exchanges also highlighted a “mutinous state” among Labour MPs, with McFadden noting that parliamentary meetings were dominated by questions over taxation and benefit distribution rather than strategic governance.
Tensions within the cabinet were further illuminated by Mandelson’s description of Health Secretary Wes Streeting as “hysterical” over the Gaza conflict and experiencing a “mid-life crisis.” Mandelson criticised Streeting’s interventions regarding Israel and Palestine as “pathetic” and indicative of a lack of maturity. These comments occurred in the lead-up to Starmer’s decision to recognise Palestine in July 2025, a move that Mandelson argued signalled a trend of the Prime Minister repeatedly “buckling” under pressure after advancing on key issues.
The leaks come in the wake of Mandelson’s dismissal from the ambassadorial role in autumn 2025, following disclosures regarding his friendship with Jeffrey Epstein. The messages suggest Mandelson went beyond his diplomatic brief to provide domestic political advice, warning that the government’s tendency to retreat from bold policies was damaging its authority. The release underscores the ongoing internal scrutiny of the Starmer government’s strategy and leadership cohesion.