Keir Starmer is set to chair the Labour Cabinet and is scheduled to face questions in Prime Minister’s Questions after the release of documents compiled by Lord Peter Mandelson, according to multiple reports. Outlets describe the new material as highlighting splits within the party and prompting internal scrutiny of Starmer’s leadership. The Independent reports Starmer will face the Cabinet following the latest tranche of disclosures, while the Belfast Telegraph and Evening Standard say he will chair Cabinet as the documents expose disagreements. The Evening Standard adds that the second tranche includes records of WhatsApp exchanges between Mandelson and Work and Pensions Secretary Pat McFadden. The Mirror links the wider context of the Mandelson-related leaks to his dismissal as UK ambassador to the US in September 2025, following reports of leaked emails containing supportive messages to Jeffrey Epstein. Across the coverage, the central focus is the timing of Starmer’s Cabinet role and the political impact of the newly released documents, which are presented as showing criticism and lack of unity within government and the party.