Amid looming local elections, Keir Starmer is under significant pressure to position Andy Burnham as his likely successor, with Labour anticipating setbacks.

Despite this, the Prime Minister’s spokesperson reaffirmed today that there is an intention to remain in office at No. 10 well into the 2030s, with a commitment to serve throughout the current Parliament and beyond.

However, a tense atmosphere seems to be brewing among MPs and Cabinet members as Sir Keir continues to be embroiled in the Mandelson scandal.

Many anticipate a critical moment when the results from the English council, along with the Scottish and Welsh Parliamentary votes, are revealed in the coming two weeks.

Reform is expected to make significant inroads in areas once dominated by Labour, while the Greens are predicted to make a strong showing in London. Party insiders are concerned that the situation is rapidly deteriorating into a crisis.

Until now, Sir Keir has been supported by the lack of immediate successors ready to challenge him, including Angela Rayner, who is currently dealing with HMRC over an unpaid stamp duty issue.

However, speculation is mounting that despite his vows to fight on, the drubbing at the polls could force Sir Keir into setting a timetable for his departure.

Keir Starmer has been bolstered up to now by the fact that none of his potential successors are ready to run – including Angela Rayner and Andy Burnham (pictured with Sir Keir earlier this month) 

Mr Burnham was blocked by Labour’s ruling NEC from standing for the Gorton & Denton by-election in February. Sir Keir’s allies argued that he would have needed to vacate the Manchester mayor job, raising the risk it would be won by Reform.

The Parliamentary contest saw the Greens emerge victorious, overturning a massive majority.

Mr Burnham, a former Cabinet minister, has indicated he is still keen to make a comeback to the Commons. 

He has been spotted meeting Ms Rayner, sparking rumours of a ‘dream ticket’ arrangement, and is expected to campaign for the local elections in London. 

The PM’s spokesman sounded defiance today on whether Sir Keir would resign. ‘He’s very focused on the job,’ the spokesman said.

‘I refer you back to his previous language that he will continue to lead the Government throughout this Parliament and beyond.

‘He’s got a huge amount of work to do. We’re in the middle of a global conflict, the like of which we’ve not seen for years.’

Sources have been briefing the Guardian that permitting a return by Mr Burnham could be the price for Sir Keir’s survival this summer. 

‘This has changed in the last few months – MPs have coalesced around Burnham in a way they hadn’t before. They also don’t want to do what the Tories did with Boris and have a disorderly transition to another insider. They are willing to drag this out until Burnham gets back,’ one source told the paper. 

‘It’s Andy or bust,’ a centrist MP said. ‘Nothing else works. Nobody else can win. Anything before he has a path is too soon.’

However, other senior Labour figures voiced concern about pinning hopes on Mr Burnham when he is not even in the Commons currently.

Ministers are dubious that Mr Burnham could win a seat in a by-election even if he was allowed to stand for one.

‘It is a real sh**show,’ one source told the Daily Mail.

A minister said: ‘He’s not the answer to Labour’s problems. And there’s no way back for him as Gorton & Denton shows. There is no safe seat we can win.’ 

Another Labour veteran said of Mr Burnham: ‘I mean, he’s got nice eyelashes. But this would very much be out of the annoying voice frying pan and into the Northern fire.’ 

There have been mounting signs of unrest in Cabinet, with ministers offering only lukewarm support in public and privately criticising the decision to sack Foreign Office mandarin Olly Robbins. 

Even Sir Keir’s staunchest supporters have been dismayed by his performance amid the latest furore over Peter Mandelson’s appointement as US ambassador

The Tories are preparing a bid to trigger a privileges committee probe into whether the PM misled Parliament about Mandelson’s vetting.  

Even Sir Keir’s staunchest supporters have been dismayed by his performance amid the latest furore.

Confronted by broadcasters on a visit to Newcastle yesterday, the Premier did not answer ‘yes’ when asked whether the Cabinet was behind him. And he did not answer ‘no’ when challenged whether he had considered resigning.   

‘That’s just Keir,’ one Labour source shrugged gloomily. 

Meanwhile, Sir Keir’s former chief of staff has denied trying to bully civil servants into waving through Mandelson’s appointment as US ambassador.

The foreign affairs committee heard claims earlier this week that Morgan McSweeney called the top mandarin in the Foreign Office ordering him to ‘just f***ing approve’ the peer’s post.

Mr McSweeney is due to appear before MPs himself next week to explain his role in the scandal, in what could be another pivotal moment for Sir Keir.   

However, the strategist reportedly told a security forum in Kyiv: ‘I find it strange reading about a character with the same name as mine sometimes.

‘I don’t recognise that character,’ he said, according to The Times.

Mr McSweeney resigned in February saying he took ‘full responsibility’ for recommending Mandelson for the the coveted job.