British Prime Minister Keir Starmer is facing increasing pressure as the Mandelson controversy erupts ahead of local elections over the recent Mandelson files released on Monday.
It comes as documents shed light on “behind the scenes” or internal disagreements between senior Labor members, creating a challenging backdrop for Starmer’s cabinet meeting.
The more documents are released, the greater the peer pressure on Starmer ahead of his most important political matter.
Starmer will chair a cabinet meeting today after messages over the appointment of Lord Peter Mandelson as Britain’s ambassador to the US exposed deep divisions within the Labor Party.
Lord Peter Mandelson was dismissed as Britain’s ambassador to the US in September 2025 after leaked emails revealed the colleague had sent supportive messages to Jeffrey Epstein while he faced jail for sex crimes.
Lawmakers voted earlier this year to force the release of documents related to his tenure as ambassador.
In May 2025, following the local election defeat and Runcorn by-election defeat, Mr McFadden said, “There are a lot of moves being made here this week. Angela (Rayner), Gordon (Brown). It’s not looking good for Keir.”
He also complained that Labor MPs were “asking the wrong questions.”
He said, “In every meeting I have this question is asked, ‘Who can we tax to benefit others?’
Mr McFadden, who held the post of senior minister in the Cabinet Office at the time, also acknowledged that the Labor revolt over welfare reforms risked undermining Starmer’s authority.
In June, shortly before the government bowed to pressure and made several concessions to rebel lawmakers, he said, “I think it’s too bad. Losing, pulling the bill or gutting it all destroys their authority.”
Precisely, Mr McFadden takes up the role of Work and Pensions Secretary with responsibility for the welfare system in September 2025.
Lord Mandelson was also sharply critical of Sir Keir’s operation in his messages, claiming that the Prime Minister “lacks the truth” and that Chancellor Rachel Reeves is unable to determine where economic growth will come from.
In a message to McFadden in July 2025, he said, referring to Downing Street, “After seeing you I moved to Number 10. It is beleaguered and beleaguered. It needs a complete overhaul and an infusion of purpose and confidence to get anywhere.”
During the same month, he told Pensions Minister Torsten Bell that the government “generally does not work well policy-wise.” Bell responded, “That’s certainly true – everyone thinks it’s someone else’s job to get the policy right… which is very strange.”
Lord Mandelson hit back: “As the saying goes, garbage in, garbage out…”
The files reveal internal criticism among Labor figures, leading to heightened scrutiny of Starmer’s leadership.
This revelation has also raised new questions on the unity and leadership of the party.
