Trump says White House will 'no longer deal with' British ambassador who called him 'inept' and DISINVITES him from dinner with Qatari emir as he attacks outgoing UK prime minister Theresa May over Brexit mess

Donald Trump said Monday that he will retaliate against the United Kingdom's ambassador in Washington by freezing him out of American diplomacy, as punishment for harsh language about him in secret cables leaked to The Mail on Sunday.

Hours later U.S. officials told news outlets including Bloomberg that the ambassador, Kim Darroch, had been struck from the guest list for the dinner that Treasury Secretary Steven Mnuchin will host with Trump for the emir of Qatar.

The president's quasi-declaration of statecraft war came in a pair of tweets that tore into Britain's outgoing prime minister Theresa May for her handling of Brexit, and suggested that a new leader in London could replace Darroch.

'I have been very critical about the way the U.K. and Prime Minister Theresa May handled Brexit. What a mess she and her representatives have created. I told her how it should be done, but she decided to go another way,' Trump tweeted.

'I do not know the Ambassador, but he is not liked or well thought of within the U.S. We will no longer deal with him,' he added. 'The good news for the wonderful United Kingdom is that they will soon have a new Prime Minister. While I thoroughly enjoyed the magnificent State Visit last month, it was the Queen who I was most impressed with!' 

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President Trump said Monday that his administration 'will no longer deal with' the UK's ambassador, who trashed him in secret memos leaked to The Mail on Sunday; Sir Kim Darroch was later disinvited from a formal dinner Monday night with the president, Treasury Secretary Steve Mnuchin and the emir of Qatar

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Trump gave Darroch the back of his hand in a pair of tweets that also lashed out at outgoing Prime Minister Theresa May

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In a series of cables, Darroch gave a scathing assessment of the Trump White House, questioning whether it 'will ever look competent 

Britain's trade minister said Monday that he would apologize to Ivanka Trump for the leak, in which Darroch described the administration as 'dysfunctional' and 'inept.'

Attempts to reach Darroch on Monday were unsuccesful. 

The memos annoyed Trump and triggered demands on the British side to find out who had disclosed them.

Trade Minister Liam Fox, who is on a visit to Washington, told BBC radio he would apologize to the president's daughter, whom he is due to meet during his trip. Ivanka Trump is also a senior adviser to her father at the White House.

'I will be apologizing for the fact that either our civil service or elements of our political class have not lived up to the expectations that either we have or the United States has about their behavior, which in this particular case has lapsed in a most extraordinary and unacceptable way,' said Fox.

'Malicious leaks of this nature ... can actually lead to a damage to that relationship, which can therefore affect our wider security interest.' 

A Conservative Party member in the UK who has been supportive of the Brexit movement said Tuedsay that 'Theresa May has made an absolute mess of Brexit. There is no two ways about that.'

'But everybody knows as well that the ambassador will be following her out the door because people are already talking about who will replace him.'

Trump, the MP said, 'has got it spot on. It’s a pity we didn’t have him doing the negotiations for us with Brussels.' 

Trump first attacked Darroch on Sunday, saying after the bombshell leak that the diplomat had 'not served the UK well.'

In a series of cables, Sir Kim gave a scathing assessment of the White House under the US President, questioning whether it 'will ever look competent'.

On Sunday Trump had unloaded on Sir Kim in return, saying: 'The ambassador has not served the UK well, I can tell you that.

''We are not big fans of that man and he has not served the UK well. So I can understand it, and I can say things about him but I won't bother.'

Trump's aides said Sir Kim's position was no longer 'tenable' and they expected him to be removed. 

Sir Kim's assessments of the Trump administration in briefing notes from 2017 to the present are likely to prove highly embarrassing for the Foreign Office.

One suggests that in order to communicate with the president 'you need to make your points simple, even blunt'. 

He also says: 'We don't really believe this administration is going to become substantially more normal; less dysfunctional; less unpredictable; less faction riven; less diplomatically clumsy and inept.'

Another note questioned whether the White House 'will ever look competent'.

Following Mr Trump's state visit to the UK in June, Sir Kim warned that although the president had been 'dazzled' by the pomp, his administration would remain self-interested and 'this is still the land of America First'.

In one of the most recent documents, Sir Kim refers to 'incoherent, chaotic' US policy on Iran and questions Mr Trump's publicly stated reason for calling off a retaliatory air strike against Tehran following the downing of an American drone.

Media reports of 'vicious infighting and chaos' were 'mostly true' despite the president's attempts to brush them off, he said.

Referring to allegations of collusion between the Trump campaign and Russia, the memo said 'the worst cannot be ruled out'.

Brexit Party leader Nigel Farage, whom Mr Trump said would do 'a great job' as Britain's ambassador to the US, said Sir Kim was 'totally unsuitable for the job'.

He added in a tweet that the 'sooner he is gone the better'.

Allies of Trump told the Daily Telegraph they believed Sir Kim could 'no longer work wit the President'. One ex-advisor said: 'I assume he will be removed.'

A Foreign Office spokesman said: 'The British public would expect our ambassadors to provide ministers with an honest, unvarnished assessment of the politics in their country. 

'Our team in Washington have strong relations with the White House. No doubt these will withstand such mischievous behaviour.'