Editorial: The departure of the prime minister’s chief of staff signals the demise of the political project which put him in No 10. All bets are off now.

Whoever succeeds Keir Starmer will still have an almost impossible task: convincing voters that politicians will serve the people, not themselves, says Guardian columnist John…

The departure of the man responsible for putting Keir Starmer into Downing Street is a serious blow to the government and leaves Keir Starer exposed