Smith is part of the Stop Trump Coalition, which organized the series of demonstrations.
We may never know if Trump was actually late, or if the queen has a habit of checking her watch, but we should point out that it's interesting how no other members of the royal family appeared at the visit with the United States president.
The event saw organizers of the stunt wearing red boiler suits and red baseball caps emblazoned with "TRUMP BABYSITTER" and handing over stickers that read "make racists unwelcome again".
He added: "I used to love London as a city -I haven't been there in a long time". But when they make you feel unwelcome, why would I stay there?' he said to The Sun. "Look around. You go through certain areas that didn't exist ten or 15 years ago".
"I think he just didn't quite know what he was supposed to be doing and probably wondered where she had got to at that moment".
"The UK, like the U.S., has a long and rich history of rights and the freedom to protest and freedom of speech".
During a news conference today with British Prime Minister Theresa May, Mr Trump attacked NBC's Kristen Welker for what he called dishonest reporting following her question about relations with North Atlantic Treaty Organisation.
A January 2017 report in The Sunday Times newspaper said Trump and Charles would not meet during his visit to Britain due to their strongly divergent views on climate change.
President Donald Trump says his relationship with British Prime Minister Theresa May is "very, very strong" even after a published interview in which he questioned her handling of Brexit. The interview posted online as Prime Minister May welcomed President Trump and the first lady at Blenheim Palace for a lavish gala dinner. "The President likes and respects Prime Minister May very much".
When asked about his comments on the PM, he outright denied criticizing her, dismissed the question as "fake news" and said the publication failed to include all the positive things he said about May.
May later had to endure an uncomfortable, open-air press conference with Trump following a three-hour meeting with him at Chequers, during which the President cast doubt on Brexit by saying Britain would "perhaps" leave the EU.
The U.S. president had earlier praised Queen Elizabeth as a "tremendous woman".