During the North Atlantic Treaty Organisation summit, Trump said the USA will "negotiate a fair deal if that's possible" and that America will "end up doing something very good with China".
Mr. Trump landed in London on Thursday afternoon for a four-day visit that includes tea with the Queen at Windsor Palace, a black-tie dinner at Winston Churchill's birthplace and a few rounds of golf in Scotland.
The 'Drag Protest Parade for the Trump UK visit' has been organised by a drag troupe from Manchester, who will be travelling down to London on Friday morning for the event.
Protesters gathered outside the USA ambassador's residence in London, where the Trumps are staying tonight, and near Blenheim Palace.
Asked about his father's visit and US-UK relations, he said: "He has worked here for so many years, he knows so many people".
The President, who is set for a two-day working visit followed by a weekend in Scotland, addressed the planned protests in a news conference, saying, "I think it's fine".
"It appears that President Trump got the message from the many Londoners who love and admire America and Americans but find his policies and actions the polar opposite of our city's values of inclusion, diversity, and tolerance", mayor Khan said in January. "We have come to an agreement which absolutely delivers what people voted for", she said in a statement. After arriving in Great Britain Thursday evening, Trump and the first lady will dine with May and her husband at Blenheim Palace.
Nona Hurkmans, one of the activists behind the infantile inflatable of Trump, said the balloon was a fair response to Trump's own behavior and downplayed claims that Trump deserved more respect.
However, Mr Trump declared the British people like him a lot, as he began his first official visit to the country.
On Friday, Trump will meet May and her newly appointed Foreign Secretary Jeremy Hunt at the prime minister's countryside retreat, Chequers. He is scheduled to meet May and then Queen Elizabeth II before leaving Friday.
Perhaps in a reference to Mr Trump's meeting with Vladimir Putin on Monday, she said that Britain and the U.S. work closely together in the interests of their shared security, "whether through targeting Daesh [Islamic State group] terrorists or standing up to Russian aggression".