Those pushing to oust the prime minister are unlikely to be deterred by his right-hand man’s departure

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For some Labour MPs, the sight of Keir Starmer accepting the resignation of his long-term consigliere, Morgan McSweeney, encapsulated everything they think is going wrong with the prime minister’s leadership.

After days of mounting criticism over McSweeney’s role in advocating for the appointment of Peter Mandelson as Washington ambassador, the prime minister’s chief of staff left Downing Street on Sunday.

But while his departure was welcomed by some of the prime minister’s critics, others felt it displayed the kind of political passivity which they say has characterised Starmer’s time in office.