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The Queen has welcomed President Trump for his first UK state visit.

Moments before landing, US President Donald Trump reignited his political feud with Mayor of London Sadiq Khan, calling him a "stone cold loser who should focus on crime in London". The President also criticised NYC Mayor Bill de Blasio, tweeting he was "dumb and incompetent."

Bill de Blasio joins Emily from Albany, New York to discuss the President's first UK state visit and the contents of his tweets.

Emily is also joined by Conservative MP Sir John Redwood, former Lord Chancellor Lord Falconer and Liz Harrington, national spokeswoman for the Republican National Committee.