Trump decried that immigration is "changing the culture" in European countries, adding that it's a "very negative thing".
Speaking to The Sun in Brussels before coming to Britain yesterday, Mr Trump said: 'I think what has happened to Europe is a shame.
Trump said he believes that the U.K.'s Brexit vote in 2016 was in part a response to lax European immigration laws, and he has frequently tried to use Europe as a cautionary tale for the USA, where he is seeking to implement more hawkish migration policies. But he reiterated his belief that Europe's decision to accept migrants from Middle Eastern and African countries is "a very negative thing for Europe". I think that what has happened is very tough.
'I think you are losing your culture.
"I was very surprised and saddened that he was getting out of government", Trump said of Boris Johnson, adding that he would "make a great prime minister".
"The UK has a proud history of welcoming people who are fleeing persecution to our country", she said.
Standing next to May at Chequers, the prime minister's official country estate, Trump acknowledged that his remarks were "politically not necessarily correct".
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"I think they like me in the United Kingdom", the president said.
"Britain is one of the best countries in the world to come and live - but at the same time we want to put in place a system which ensures we have control of our borders and that is what we are going to do later this year". And over the years, overall immigration has been good for the UK.
May says people of different backgrounds have contributed to her country's society, but it's important to have a "set of rules" when it comes to immigration.
"We all tout our nation as being a nation of immigrants", Espaillat said.
"One of the reasons I got elected was because of immigration and I felt that Brexit had the upper hand and most people didn't agree with me".
He went on: "When a awful incident happened... then surely you should recognise that the police and community have a job to do and what Sadiq has sought to do is bring people together in unity to keep London together, just as happened after 7/7 all those years ago". I made that recommendation to Europe.