Andy Burnham's social care pledge is facing fresh scrutiny after an analysis suggested the plan could cost £21 billion more than previously expected. The finding raises new questions about how his flagship policy would be funded and whether its price tag has been significantly underestimated.

The report adds pressure to a debate that has long surrounded social care reform in the UK: how to improve support while keeping costs under control. A gap of this scale would be politically significant, especially for a proposal presented as a major answer to one of the country's most difficult policy problems.

The issue also lands at a sensitive moment for the wider political discussion on care reform. The Prime Minister has indicated a willingness to spend political capital on changing the system, highlighting how central the issue has become for national policymakers.

With social care already seen as one of the toughest domestic challenges, the new cost warning is likely to intensify arguments over affordability, priorities and the realism of headline pledges. It underlines how difficult it can be to turn broad reform promises into a workable and fully funded plan.