Here are some of the main quotes from the interview he gave to The Sun, Britain’s biggest-selling newspaper which is owned by Rupert Murdoch.
TRUMP ON MAY
“I never said anything bad about her. I think she is a nice person. I get along with her very nicely.”
TRUMP ON MAY’S BREXIT STRATEGY, US-UK TRADE DEAL
“If they do a deal like that, we would be dealing with the European Union instead of dealing with the UK, so it would probably kill the deal.
“If they do that, then their trade deal with the US will probably not be made.
“We have enough difficulty with the European Union. No, if they do that I would say that would probably end a major trade relationship with the United States.”
TRUMP ON MAY’S BREXIT NEGOTIATIONS
“I would have done it differently. I actually told Theresa May how to do it but she didn’t agree, she didn’t listen to me. She wanted to go a different route.
“I would actually say she probably went the opposite way.”
TRUMP ON MAY’S BREXIT DEAL
“The deal she is striking is a much different deal than the one the people voted on. It was not the deal that was in the referendum.”
TRUMP ON FORMER FOREIGN SECRETARY BORIS JOHNSON
“I have a lot of respect for Boris. He obviously likes me and says very good things about me.
“I was saddened to see he was leaving government and I hope he goes back at some point.
Asked if Johnson would be a good British leader, he said: “Well I am not pitting one against the other. I am just saying I think he would be a great prime minister.”
TRUMP ON LONDON’S MUSLIM MAYOR SADIQ KHAN
“You have a mayor who has done a terrible job in London. I think he has done a very bad job on terrorism.
“I think he has not been hospitable to a government that is very important. Now he might not like the current president, but I represent the United States.”
TRUMP ON LONDON PROTESTS
“I guess when they put out blimps to make me feel unwelcome, no reason for me to go to London.
“I used to love London as a city. I haven’t been there in a long time. But when they make you feel unwelcome, why would I stay there?”
TRUMP ON IMMIGRATION
“I have a great love for countries in Europe. I think what has happened in Europe is a shame.
“Allowing the immigration to take place in Europe is a shame. So I think allowing millions and millions of people to come into Europe is very, very sad. I think you are losing your culture.”
Reporting by Michael Holden; editing by Guy Faulconbridge and Stephen Addison