US President Donald Trump doesn't regret sharing controversial Ilhan Omar 9/11 video

United States President Donald Trump has no regrets about sharing a controversial video suggesting Democratic congresswoman Ilhan Omar didn't give necessary weight to the 9/11 attacks.

On Saturday, Trump tweeted a video which spliced footage of 9/11 with a clip where Omar described the attack as "some people did something".

Republicans said Omar's description showed she didn't give the attacks the weight they deserve and that she was dismissive of their effect on people in New York.

Following the tweet, Omar said there had been an increase in threats to her life - resulting in the Speaker of the House, Nancy Pelosi, ensuring an assessment of the congresswoman's safety was conducted.

Many of the replies to Trump's tweet called Omar a "terrorist".

But despite the death threats, Trump isn't backing down and doesn't believe he's done anything wrong, saying "no, not at all" to questions of if he had had any second thoughts about the tweet.

"Look, she's been very disrespectful to this country," he told local media.

"It's unfortunate. She's got a way about her that's very, very bad, I think, for our country. I think she's extremely unpatriotic and extremely disrespectful to our country."

He tweeted on Tuesday that Pelosi should look at the "anti-Semitic, anti-Israel and ungrateful US hate statements Omar had made".

"She is out of control, except for her control of Nancy!"

Omar was one of the first two Muslim women to be elected into Congress and the first to wear hijab.

Her now famous speech was at an event hosted by the Council on American-Islamic Relations last month, where she said "some people did something" that caused Muslims to discriminated against and "loss access to our civil liberties".