U.S. Ambassador to Britain Woody Johnson | Daniel Leal-Olivas/AFP via Getty Images US ambassador to UK: Trump is ‘very thick-skinned’ Donald Trump’s working visit to London is ‘very, very symbolic and very important,’ Woody Johnson says.

Donald Trump is not worried about mass protests ruining his working visit to the U.K. in July, U.S. Ambassador to the U.K. Woody Johnson said Friday.

The visit is "very, very symbolic and very important," given the U.K. is a significant trading and investment partner for the U.S., the ambassador told LBC radio presenter Nick Ferrari.

Asked whether Trump was aware of the "Stop Trump" campaign urging protesters to take to the streets in London, Johnson insisted Trump is "very thick-skinned" and "knows what he wants to do."

"He speaks in a very clear and unusual way," Johnson said. "He's going to get a lot of criticism."

The president's schedule has not been set and will depend on "world events," Johnson said, confirming that Trump would "definitely" be in London, despite speculation meetings would take place elsewhere to avoid demonstrations.

Johnson dismissed the suggestion that the downgrade from a "full state visit" to a "working visit" is a snub, and said it was likely Trump would come back for a state visit, "maybe next year."

Critics — including London Mayor Sadiq Khan and the House of Commons Speaker John Bercow, who have spoken out against the U.S. president ahead of the visit — will "realize [Trump] has so much to bring to the table" in terms of prosperity, defense and military cooperation, "especially given Brexit," Johnson said.

Asked about the royal wedding between Prince Harry and American-born Meghan Markle next month — to which he said he was not invited — Johnson agreed the event would draw the two countries "even closer."

"She does bring a lot to the table, so I think that's going to be great," Johnson said.