Even with an invitation from Queen Elizabeth II, President Donald Trump and first lady Melania Trump arrived at London Stansted airport for the American leader's first official visit to the U.K. Thursday morning amid an expected surge in protests.
Tomorrow, May and Trump will visit an unnamed defence site to view a demonstration of UK military capabilities, as a showcase of integrated UK-US military training.
We're more than used to our best sports-stars and celebrities being picked up as "British" in the English media when they're on the rise, and "Irish" when they're underperforming or in trouble.
"Maybe they're taking a little bit of a different route [on Brexit], so I don't know if that's what they voted for", he told a press conference after the North Atlantic Treaty Organisation summit in Brussels.
Gardner, who works with refugees as part of her doctoral research at the London School of Economics, said Trump's speeches about refugees and immigrants are "a very risky line of rhetoric to be normalized".
He is due to stay overnight at the ambassador's Winfield House residence in London's Regent's Park, where demonstrators plan to play recordings of migrant children held in U.S. detention centers.
"You have endorsed this to be flying at Parliament so the images that will go round the world from Trump's visit, which is a very important visit for this country; as we come through Brexit we are going to need a good trade deal with America, he has signaled that he is prepared to give us one and that the image that will go round the world we know is going to be him in a nappy as a baby", Mr Morgan said.
Will Geddes, an worldwide security specialist who has been involved in past state visit planning, estimates Mr Trump has brought around 150 secret service agents with him.
But it's not simply the protesters, who are expected to dog Mr. Trump throughout his visit, including his weekend in Scotland, but his fraught relationship with political leaders accustomed to harmonious exchanges with US leaders, a tradition of unity that goes back at least to the vital World War II partnership of Franklin D. Roosevelt and Winston Churchill.
The US president and the first lady were given a red carpet reception at Blenheim Palace, Oxfordshire.
May will host a black-tie dinner for Trump there, attended by senior ministers and about 100 business leaders, including from Blackstone group, Blackrock, Diageo, McLaren and Arup.
Mr Trump and his wife Melania landed at Stansted on Air Force One at 1.50pm local time before a helicopter took them to the United States ambassador's residence in London.
Along with trade and security ties, Downing Street said the other key areas to be discussed between the two leaders included Brexit and the Middle East.
"Give us your tired and your oppressed and we'll divide you from your children", he said of Trump's policies.
Separately, his wife, Melania, will visit war veterans and schoolchildren in a London visit accompanied by Philip May, the prime minister's husband.
Perhaps in a reference to Mr Trump's meeting with Vladimir Putin on Monday, she said that Britain and the USA work closely together in the interests of their shared security, "whether through targeting Daesh [Islamic State group] terrorists or standing up to Russian aggression".
Later, Trump will go to Windsor Castle for tea with the 92-year-old queen.
She also plans to shift the focus during the rest of Mr. Trump's visit, hoping to steer him toward talk about trade and the growing threat of Russian Federation.