Sir Keir Starmer's leadership is coming under increasing pressure after the resignation of key government members and a call from Scotland's Labour leader for the prime minster to quit.
Sky's Beth Rigby says it "feels like the whole operation is falling apart" and the next 48 hours will be crucial to the prime minister's future.
The crisis was triggered by revelations of Peter Mandelson's association with Jeffrey Epstein - and how much Sir Keir knew when he appointed him UK ambassador to the US.
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