The new Ambassador, Woody Johnson, is a close personal friend of Donald Trump, but he still has to deal with the fallout from the President's more controversial policies, tweets, and retweets.
We follow the consular staff as they try to decide who should and shouldn't be allowed to enter the USA, following the introduction of President Trump's controversial travel ban.
What's it like to be responsible for President Trump's UK visit? Go behind the scenes with the U.S. Embassy team responsible for keeping the Presidential show on the road.