DONALD Trump will visit London despite the threat of protests when he flies to Britain in July, the US ambassador to the UK has insisted.

Woody Johnson said demonstrations during the working visit on July 13 would not deter the president.

He told LBC: "He's very thick-skinned. He knows what he wants to do and he speaks in a very clear and unusual way from most politicians.

"Most politicians don't weigh it out the way he does and so he is going to get a lot of criticism for that as people interpret where he is taking everything.

"But I think in the end, people are starting to, even now, realise that where he is going is a good direction."

Johnson told Nick Ferrari it would be "all hands on deck" as preparations are made for the visit.

He said: "He will definitely be coming to London."

Johnson said exactly who the president would have meetings with was still being finalised.

Mass protests are expected.