"Because you are changing culture, you are changing a lot of things, you're changing security.it's a very sad situation but I don't think it's good for our country and I don't think it's good for Europe", Trump said.
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At a joint press conference at the Prime Minister's Chequers residence in Buckinghamshire on Friday, the President was pressed by reporters on comments he made about migrants contributing to an erosion of British and European identity.
"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".
"I think it's very much hurt Germany".
"I think it's changing the culture". "We have a proud history of welcoming people who want to come to our country to contribute to our economy and society". And over the years, overall immigration has been good for the UK.
"Of course what is important is that we have control of our borders, what is important is we have a set of rules that enable us to determine who comes into our country", she added.
During the press conference, the president lashed out at immigration laws back home, too.
Trump, who campaigned on building a wall on the U.S. -Mexico border and a Muslim travel ban that morphed into one on multiple countries, said before a step up in migration Europe 'never had difficulty, never had problems'. "We're doing very well considering the fact that we don't have immigration laws".
President Trump criticized Europe's lax immigration policies in an exclusive interview with The Sun which was released as Trump arrived in the UK Thursday for his first visit as United States president.
Khan said on Friday that he was "trying to rise above" the jibe, but when asked if the door of City Hall would be open to Trump if he wanted a face-to-face meeting, he added: "I'm happy to meet President Trump and to explain to him, in a respectful, courteous manner where I think he's wrong on a number of issues, to hear him out, see what his explanation is for holding me responsible for the attacks we saw in London a year ago".
"I dont think it's good for Europe".
'We've seen some terror attacks.
"I think you are losing your culture. Look around. You go through certain areas that didn't exist ten or 15 years ago", he continued.
In his remarks Friday, Trump blamed immigration for terrorist attacks and offered Germany as an example.
"Take a look at the terrorism that is taking place".
"The statement by Donald Trump condemning the mayor and then going on with a general condemnation of Muslim migration into the United States is not helpful, in fact is very unsafe to community relations, and I think the statement that Sadiq has made in response is very good". "You are changing a lot of things".
"The wonderful thing about our city is the diversity. I hope you'll realize it's a strength not to be afraid of, but to be cherished", Khan said in a pointed rebuke aimed at Trump.
In a separate interview with BBC radio on Friday, Khan called Trump's claims "preposterous".
"I think any form of immigration into this country, people should be signing up to British values when they come over".
The president has often claimed illegal immigration has plagued the US and accused immigrants from Mexico of being rapists and drug dealers.
"Why are we having all these people from s--hole countries come here?"
May's words on immigration were more conciliatory.
Trump's comments while overseas highlight his hardline immigration rhetoric that he often uses on the campaign trail, often linking it to increased crime, citing the gang MS-13.
Trump also brought a similar immigration message to the North Atlantic Treaty Organisation summit in Brussels. I made that recommendation to Europe.