Donald Trump showed his support for Tucker Carlson Wednesday after the Fox News host said Somali-American congresswoman Ilhan Omar is 'proof' the immigration system is dangerous.

The primetime host used a segment of his Tuesday night show to make the claim that the Democrat 'hates this country,' which prompted Omar, one of the Democrats' most prominent left-wing members of Congress, to call him a 'racist fool.'

Omar, 36, was born in Somalia and came to the U.S. as a refugee with her father aged 10, after spending time in a refugee camp in Kenya.

'Ilhan Omar is living proof that the way we practice immigration has become dangerous to this country. She has undisguised contempt for the United States and for its people,' Carlson charged on his Fox News program Tuesday night.

'She's a living fire alarm, a warning to the rest of us that we better change our immigration system immediately, or else,' he warned.

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Rep. Ilhan Omar was the target of fury from a Fox News host Tuesday night

Tucker Carlson called Rep. Omar a 'living fire alarm' that immigration laws need to be changed

Trump demonstrated his support via Twitter, retweeting conservative radio host Mark Levin, who himself tweeted criticism at CNN for attacking Carlson in the wake of Carlson's tirade.

Levin included a link to a Mediate piece which detailed how 'New Day' host John Berman called Carlson's remark a 'flat-out racist comment.'

Carlson went off on a furious tirade about her on his Fox News show Tuesday evening after referring to a Washington Post profile on the freshman Democrat.

'Ilhan Omar has an awful lot to be grateful for, but she isn't grateful, not at all. After everything America has done for Omar and for her family, she hates this country more than ever,' he said.

'Virtually every public statement she makes accuses Americans of bigotry and racism,' he added. 'This is an immoral country, she says. She has undisguised contempt for the United States and for its people. That should worry you, and not just because Omar is now a sitting member of Congress.'

He used her to support an argument that Democratic presidential candidates believe 'America is an awful country.'

Carlson outlined Omar's family story of immigration and said: 'Omar is now at the age of only 36 one of the most powerful women in America.

'Ilhan Omar has an awful lot to be grateful for. But she isn't grateful, not at all

'After everything America has done for Omar and her family, she hates this country more than ever.'

He quoted the Washington Post profile which said that her view of America was 'the country that had failed to live up to its founding ideals, a place that had disappointed her and so many immigrants, refugees and minorities like her.'

Omar is the first Somali-American member of Congress and the first woman of color to be elected to Congress from the state of Minnesota.

She was born in Mogadishu, the capital of Somalia, the youngest of seven children, and lost her mother when she was two. Her father's family included civil servants and government officials, and when she was six they fled the war-torn country, spending four years in a refugee camp on in Kenya.

In 1992 her father brought her and her siblings to the U.S. where they claimed asylum, living first in Virginia - where she said she experienced racism - then moving to Minneapolis, which has the country's largest Somali community.

The family were granted refugee status in 1995 and she became a citizen in 2000, when she was 17.

Omar went to North Dakota State University and worked in Minneapolis for community initiatives and Democratic politicians before becoming member of the state House and running for Congress in 2016.

She is one of the first two Muslim women in Congress.

She brushed off Carlson's criticism.

'Not gonna lie, it's kinda fun watching a racist fool like this weeping about my presence in Congress,' she wrote on Twitter. 'No lies will stamp out my love for this country or my resolve to make our union more perfect. They will just have to get used to calling me Congresswoman!'

Trump rails constantly on the immigration issue and the need for a wall at the border. He has blamed Democrats for an influx of migrants into America and is expected to use the issue to rally his base in the 2020 election.

The freshman Democrat from Minnesota, who took office in January, has had her share of controversy since coming to Capitol Hill.

She set off a fire storm in February with her suggestion that the Israel lobby was using its resources to buy off supporters.

'It's all about the Benjamins,' she tweeted about the influential group.

She later apologized for her remarks, which critics said were anti-Semitic, and acknowledged that they were wrong.

And, in March, she appeared to minimize the September 11 attacks when she noted a Muslim group was formed in its wake 'because they recognized that some people did something and that all of us were starting to lose access to our civil liberties.'

The earned her the wrath of the president, who tweeted a video of her remarks interspersed with footage of the World Trade Center Towers burning.

She told The Washington Post for its profile of her: 'There is an almost demonized view that people have of us that makes it really hard for others to see us as their neighbors, their friends and as their colleague as a member of Congress.'