Soon after Trump arrived at Blenheim Palace in Oxfordshire for a gala black tie dinner on Thursday night, The Sun newspaper published an interview with the U.S. President that is likely to embarrass his host.
Trump's comments were condemned by British politicians as it delivered an astonishing political knifing of the already embattled May, comprehensively undermining her fragile position in Britain's tortuous negotiations on leaving the European Union next year.
Trump will end his day with a trip to his Turnberry golf club course in Scotland.
Later in the press conference, Trump slammed reporter Kristen Welker after a question about Russian Federation. "And those Tories saying we should respect him simply because he is elected President - by that logic shouldn't he respect our Prime Minister & London's Mayor?" tweeted Anna Turley, a Labour MP from Redcar.Trump is a racist & disrespects our nation.
The British government on Thursday published its long-awaited Brexit blueprint aimed at restarting stalled talks with the European Union, only for it to be panned by eurosceptics, the City of London and the United States president.
The timing of the comments added to the awkwardness.
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Casey Wasserman, the chief executive of Wasserman, the talent management company that owns Laundry Service , declined to comment. Schnatter also resigned Wednesday from his vice chairman post on the University of Louisville Board of Trustees.
Mr Trump described Brexit as a "very tough situation. between the borders and the entries into the countries and all of the things", saying: "The only thing I ask is that she work it out so that we can have very even trade". Donald Trump has launched an astonishing attack on the British Prime Minister over her handling of Brexit, hours before touching down in the UK. He also said a rival politician, Boris Johnson, would make a "great prime minister".
"I don't know what you're going to do but whatever you're going to do is ok with us, just make sure you can trade with us", he said. It's a much different deal than people voted on. I think she's doing a terrific job. "I said to Theresa May I wanted to apologise, but she said "Don't worry, it's only the press".
Al Jazeera's Laurence Lee, reporting from Buckinghamshire, said that Trump's helicopter landed around 10:00 GMT ahead of the meeting. And that is fine. "But it is too bad what is going on", the president said. "It is for him to explain why he thinks I'm responsible for immigration into Europe or the United Kingdom. One of the reasons I got elected was because of immigration, I felt that Brexit had the upper hand, and most people didn't agree with me".
But over on social media, it's also triggered a new meme, which involves a certain current British prime minister - who has been pictured looking positively smitten with her new guest.
In further embarrassment to Mrs May, Mr Trump claimed that Boris Johnson has "got what it takes" to be prime minister.
Mr Trump went on to say Mr Johnson, who quit as foreign secretary over the Chequers plan, was "a great representative for your country". I gave her a suggestion, not advice.