UK Prime Minister's chief of staff resigns over ambassador appointment

The chief of staff to UK Prime Minister Keir Starmer has resigned. The resignation is linked to the appointment of Peter Mandelson as the UK's ambassador to the United States, a decision that drew scrutiny due to Mandelson's past association with the late financier Jeffrey Epstein.

Starmer is now facing political pressure following the departure of his top aide, McSweeny. The situation was further complicated by a separate police action regarding files, which added an unexpected element to the unfolding events.