A comprehensive release of documents concerning Peter Mandelson’s tenure as British ambassador to the United States has unveiled a trove of candid observations regarding the Labour Party’s leadership under Keir Starmer. The nearly 1,500 pages, made public due to a parliamentary motion, detail Mandelson’s scepticism about the current government, his private communications with key ministers, and his ambitions for significant political roles.
Incomplete Cooperation with Investigations
The release of these documents, described by Downing Street as the most expansive of its kind in response to a Commons motion, raises questions about Mandelson’s transparency during the investigation. Notably, a government official reached out to him via his solicitors on 31 March, seeking information stored on his personal phone. Mandelson’s refusal to comply with this request has left a notable gap in the inquiry, as officials cannot access personal devices without consent.
This act of non-cooperation not only highlights Mandelson’s reluctance to divulge information but also casts a shadow over the accountability expected from public figures. What remains undisclosed could be as significant as what has already surfaced.
Discontent with Starmer’s Leadership
Mandelson’s assessment of Starmer’s leadership is blunt and revealing. Through a series of WhatsApp exchanges with Pat McFadden, one of Starmer’s closest advisors, Mandelson expressed deep concerns about the direction of the government. After visiting Downing Street in July 2025, he described the atmosphere as “beleaguered and bereft.” His critique of the Prime Minister’s leadership style— “advance/buckle/advance/buckle” — paints a picture of a leader lacking decisiveness and vision.
Mandelson’s frustrations extend beyond Starmer to the entire cabinet, which he characterised as lacking energy and inspiration. His remarks suggest a growing disconnection between the party’s leadership and the expectations of its members and supporters.
A Handwritten Note and Controversial Remarks
In a handwritten note addressed to David Lammy, the then foreign secretary, Mandelson expressed his eagerness to take on the ambassadorial role, assuring Lammy that his appointment would not be regrettable. This personal touch reveals the political manoeuvring that often underpins such appointments.
Yet, not all his communications were complimentary. In a private exchange, Mandelson dismissed Wes Streeting, the former health secretary, as “hysterical” regarding Israel’s actions in Gaza, and suggested that Streeting was undergoing an “early mid-life crisis.” Such comments raise questions about the camaraderie within the party and indicate a fractious relationship among its members.
Advice to Starmer and Messages of Support
Mandelson’s relationship with Starmer appears strained, characterised by brief and formal exchanges. In June 2024, he reached out to advise Starmer to meet with former Prime Minister John Major, noting Major’s “interesting and thoughtful” nature. However, the lack of response from Starmer indicates a wider disconnect between the party leadership and its past luminaries.
Interestingly, the documents reveal that many ministers within the government were quick to congratulate Mandelson on his new role, with messages that bordered on sycophancy. This illustrates a certain duality; while some may privately question Mandelson’s suitability, publicly, they appear eager to associate with him.
Ambitions Beyond Washington
Mandelson’s aspirations extend beyond his ambassadorial duties; he has long coveted the position of Chancellor of Oxford University. Evidence from the WhatsApp exchanges shows him actively courting support from a network of alumni, highlighting his relentless ambition to secure influential positions. His outreach included messages to prominent figures, including Ed Miliband, often met with silence.
This pursuit underscores a broader narrative within the Labour Party, where personal ambition often intertwines with political strategy, leading to alliances and rivalries that shape the party’s future.
Why it Matters
The revelations from Mandelson’s documents offer a stark reminder of the internal struggles facing the Labour Party as it navigates a complex political landscape. With Mandelson’s critical views on Starmer’s leadership and the evident discontent within the cabinet, the party’s ability to present a united front is under threat. As Labour seeks to regain the trust of its constituents, these insights serve as both a warning and a call to action—a need for revitalisation and a clearer, more dynamic leadership that resonates with the party’s base and the electorate at large.
