Paul made the remarks in an interview with Breitbart News at last week’s Turning Point USA conference in Washington.

Trump’s tweets earlier this month about Omar (D-Minn.) and the three other congresswomen prompted the House to pass a resolution condemning his remarks. Three of the congresswomen were born in the United States; Omar is a naturalized U.S. citizen who was born in Somalia.

As debate over Trump’s comments swirled, Paul defended him, saying of Omar, “I’m sort of dumbfounded how unappreciative she is of our country.” Paul went further in the interview with Breitbart.

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“While I’m not saying we forcibly send her anywhere, I’m willing to contribute to buy her a ticket to go visit Somalia, and I think she could look and maybe learn a little bit about the disaster that is Somalia — that has no capitalism, has no God-given rights guaranteed in a constitution, and has about seven different tribes that have been fighting each other for the last 40 years,” Paul said. “And then, maybe after she’s visited Somalia for a while, she might come back and appreciate America more.”

An Omar spokesman declined to comment on Paul’s remarks. Paul’s office did not immediately respond to a request for comment.

On Sunday, after reports of Paul’s comments began to circulate widely, Omar retweeted a post by comedian Tom Arnold appearing to make light of a 2017 incident in which the Kentucky Republican was assaulted by a neighbor. The retweet sparked outrage among conservatives, including the president’s son, Donald Trump Jr.

“Congresswoman Ilhan Omar retweeting calls for political violence against @randpaul,” Trump Jr. said in a tweet. “I’m not surprised, and look forward to the forthcoming silence from the media on the issue.”

Omar, a freshman and one of two Muslim women in the House, has been among the most vocal critics of Trump’s policies and language. In a New York Times op-ed last week, she said the president “has used overtly racist rhetoric to strike fear and division in communities of color and religious minorities across the country.”

She also described her journey with her family to the United States in the hope of a better life — and said that the chants of “Send her back!” by Trump supporters at a recent rally in response to the president’s criticism of her prompted her to “remember the horrors of civil war in Somalia that my family and I escaped.”

“The ideals at the heart of our founding — equal protection under the law, pluralism, religious liberty — are under attack, and it is up to all of us to defend them,” she wrote.

In the Breitbart interview, Paul said he has met “a lot of people” in Kentucky who are refu­gees — “some from Somalia, some from Bosnia” — and “most of them are thankful.”

“I’ve met people who have come here from behind the Iron Curtain, that got away from communism,” he said. “They’re some of the best Americans we have, because they really appreciate how great our country is.”

Omar, by contrast, is “about as ungrateful as you can get,” Paul said.

“And then I hear Rep. Omar say, ‘Oh, America’s a terrible place! I thought there’d be justice, and there’s no justice here,’” Paul said. “It’s like, well, she came here and we fed her, we clothed her, she got welfare, she got school, she got healthcare, and then, lo and behold, she has the honor of actually winning a seat in Congress, and she says we’re a terrible country?”

While Omar has been critical of Trump, she has not described the U.S. as a “terrible country.”