Donald Trump won’t be the first controversial leader to be hosted by The Queen during a formal State Visit to the UK.
The invitation might come from Buckingham Palace, but it’s never the Queen who decides who will and who won’t come on these grand ceremonial occasions.
The Foreign Office normally concludes which leader it would like to come here based on the government’s economic and political priorities at the time.
Theresa May for example, was keen to rush out an invitation when she visited the White House shortly after Mr Trump was elected.
But as the constitutional Monarch and Head of State, it falls to the Queen to lead the country’s welcome on a State Visit.
The UK has most recently hosted the Kings of the Netherlands and Spain.
Before them, it was the Presidents of Colombia, China and Mexico.
The most recent US President to come on a State Visit was Barack Obama and his wife Michelle in 2011.
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