New York Mayor Bill de Blasio (D) on Tuesday said Donald TrumpDonald TrumpSanders-backed candidate wins NY House primary Ambassador's sister: I don't blame Clinton for Benghazi Clinton to Trump supporters: 'Don’t look for easy answers' MORE’s rhetoric has entered “dangerous” territory.
“[Trump] has now become dangerous,” he said on “Len Berman and Todd Schnitt in the Morning” on WOR-710 in New York.
“Then he has started to say things that are positively un-American, like we are going to have Muslims on a list and not allowing people into the country based on a religious test. What has Trump done? Just look at the Constitution. This goes against all of our basic values.”
De Blasio said the Republican presidential front-runner's rhetoric on immigration is particularly troubling.
“It is the time of year when we think about our blessings and the blessing that is this country,” he said. “Every kind of people is welcome here. This is what has made us work and what has made us great. [We are] a great nation of immigrants, a beacon to the world.”
The mayor added that he believes bipartisan opposition is gradually building against Trump’s White House bid.
“A lot of other voices have come to the same conclusion,” de Blasio said.
“I also think that more and more people, including a lot of Republicans, are very, very concerned about what he is saying and more and more people are speaking out against it.”
De Blasio’s remarks are the latest in his ongoing public feud with Trump this year. He called the businessman a “blowhard” during an earlier interview last November.
Trump responded by calling de Blasio the country's “worst mayor." The business mogul has also accused him of “ineptitude” in managing the New York City.
De Blasio endorsed Democrat Hillary Clinton for president earlier this year.