The Trumps then went for tea with Queen Elizabeth.
The former Ukip leader hit out at the nationwide protests against Mr Trump's visit to the United Kingdom and said the whole thing is "ridiculous".
Demonstrator Sheila Menon, who is part of a group who crowdfunded the balloon, said earlier this week, 'We know that behind the humour of this the Trump baby represents a whole multitude of campaigns and issues.
They also were late when meeting Queen Elizabeth, causing her to check her watch, on camera, several times. The Coldstream Guards gave a royal salute and played the U.S. national anthem.
Lovren hails Croatia's historic World Cup achievement
Lovren also called for Croatia team-mate Luka Modric to receive the highest individual award in world football, the Ballon d'Or. Speaking of the experience as a whole, Lovren says it is one that the tiny European nation will always remember.
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The Trumps arrived at Stansted Airport near London on Air Force One earlier that afternoon for the controversial trip to Britain. President Trump said the British people "voted to break it up, so I imagine that " s what they " ll do" and "Brexit is Brexit".
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Goodlatte said he issued a subpoena to compel Page to talk to lawmakers Wednesday, but her attorney said she would not appear. Chairman Goodlatte made the announcement during an interview Thursday, saying the details are still being worked out.
Did Donald Trump just WALK IN FRONT OF THE QUEEN?!?!?!
After the series of events, they all went inside for tea..
Trump will not be meeting Queen Elizabeth's eldest son and William's father Prince Charles, the heir to the throne. Her Majesty tried to show the former billionaire businessman how to walk but he quickly forgot. He said: "Well, my message to President Trump is we Londoners love your country".
Tens of thousands of protesters marched through London on Friday to demonstrate against the US president's visit.
According to CBS, it was the largest weekday protest the city has seen in 15 years.
The Trumps entered the castle's Quadrangle by Range Rover after arriving on the castle grounds by helicopter. Some hours before, an inflatable balloon depicting the president as big orange baby flew in the air alongside the Houses of Parliament.
The president's critics on Twitter were quick to call him out for briefly walking in front of the queen, which is reportedly a social faux pas, during a ceremonial inspection of the Guard of Honor.