Labour MPs are reportedly urging colleagues to demand Burnham’s return in order to position him as Starmer’s eventual successor

If Keir Starmer is looking for a saviour to keep him in No 10 after the May elections and the scandal of the Mandelson saga, there is an unlikely figure in the north-west who might help him – temporarily.

It has been the week where the prime minister seemed at his most isolated. But Labour MPs told the Guardian they were urging colleagues not to depose Starmer next month, and were instead preparing to demand that Andy Burnham return to parliament in order to succeed him before the next general election.

PM admits he made mistake in choice of ambassador as he makes high-stakes statement to parliament over scandal

Keir Starmer has accused Olly Robbins of deliberately and repeatedly obstructing the truth about the Mandelson vetting scandal before a high-jeopardy appearance of the sacked top official before MPs on Tuesday.

Six days after the prime minister said he had learned that his pick for Washington ambassador had failed security vetting, Starmer admitted his decision to appoint him had been a fundamental mistake.