Donald Trump has declared Sir Keir Starmer will resign as Prime Minister after failing to tackle the migrant crisis.
In a post on Truth Social, the US President also took aim at Sir Keir over his refusal to open up the North Sea to new oil licences.
He said: "Keir Starmer will resign as Prime Minister of the United Kingdom. He failed badly on two very important subjects - Immigration and energy (open North Sea oil). I wish him well!"
Mr Trump, who forged a somewhat surprising relationship with Sir Keir after his return to the White House, has been particularly critical of the Labour leader over the small boats crisis and energy.
However, the pair have also locked horns over free speech, Greenland, the Chagos Islands, Iran and London Mayor Sir Sadiq Khan.
Sir Keir, who will likely secure his place in history as Labour's shortest-serving Prime Minister, is expected to announce his plan to step down as soon as tomorrow.
Sources have briefed The Observer, The Sun and The Telegraph about the challenging position the Prime Minister finds himself in.
Business Secretary Peter Kyle refused to rule out Sir Keir's resignation, instead confirming the Prime Minister will make a decision "in the best interests of the country".
Sir Keir Starmer met with Donald Trump at the G7
|PA
Speaking to GB News this morning, Mr Kyle said: "He's making time this weekend, as well as doing the job of Prime Minister, to reflect on the political challenges that our country faces, that he faces, and he will be making decisions in the interests of the country on the back of that.
"I can't predict the future. I am not his spokesperson. I'm not with him today. What I do know is that I spent quite a considerable amount of time with him on Friday.
"He asked lots of questions, always based in the interests of the country.
"He asked me very clearly what he felt in a whole degree of different circumstances and what the country was expecting from us as a party, him as a leader and us as a Government.
LATEST DEVELOPMENTS:
The number of small boat migrants that have reached Britain this year has now passed 10,0000 | GETTY"He said that he wanted time this weekend to reflect on it. I mean, literally, I cannot say any more than that."
When pushed on whether this meant Sir Keir would resign tomorrow, Mr Kyle admitted the Prime Minister is expected to make a decision.
Mr Kyle added: "I've just said the process that's underway at the moment, and Keir will come back and make a decision. You always put the interests of the country first."
Despite Mr Trump's comments on Sir Keir's potential resignation, US officials have issued dire warnings about how the special relationship could worsen if he leaves No10.
The North Sea is becoming a focal point of the by-election campaign | GETTY“Starmer is seen as a reasonable choice for now, given the further-left alternatives,” one US official told Politico at the G7 summit.
“Wherever that [relationship with Trump] stands at any given moment, it’s a lot deeper than what something with Burnham might be.”
Andy Burnham, who is expected to garner support from more than 200 Labour MPs next week, expressed "concerns" about Mr Trump's return to the White House after the 2024 US Presidential Election.
He said: "I don’t think it’s the case that we put those concerns to another side. You have to stick to what you believe to be right and that’s where I think people in Greater Manchester would want me to be.
Andy Burnham is hoping to become the next Prime Minister
| GETTY"You’ve got to respect the vote over there and the way people voted. But that shouldn’t mean you don’t open your eyes to what could be really challenging and difficult issues and things that could polarise people further – we don’t want to see that.
"Obviously, you’ve got to work with people and we will continue what we’re doing. We’ve got lots of relationships in the US, we’ll be in Austin in the new year, we’ll obviously work with people, but we won’t compromise our principles either."
However, Mr Burnham struck a somewhat different tone following Mr Trump's first White House victory in 2016.
“The worst thing … is for the people on the left of politics to somehow say that the voters are to blame because they don’t like their views,” said Mr Burnham.
“You know, that is just a misreading completely. People are saying they want something very different, and in my view they are right to say they have not been well served by the powers that be.”