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.

Pressure grows on Keir Starmer as Labour peer reported to have received payment worth three months’ salary when he quit in September

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A cabinet minister has called for Peter Mandelson to hand back the payout he received after quitting as ambassador to the US last year, as pressure increased on the prime minister to quit for having appointed him in the first place.

Pat McFadden, the welfare secretary, said on Sunday he thought the Labour peer should give back his Foreign Office payout, which is reported to be as much as £55,000. The Foreign Office is understood to be reviewing the payment.