Several 2020 Democratic presidential candidates have come to the defense of Rep. Ilhan Omar, D-Minn., as she was blasted for comments about the Sept. 11, 2001, terrorist attacks and Muslim civil rights at a recent conference.

While speaking last month at an event hosted by the Council on American-Islamic Relations (CAIR) in Los Angeles, Omar discussed how Muslim Americans had their constitutional rights and freedoms infringed upon following the 9/11 attacks, making a comment that some saw as minimizing the terrorist act.

"CAIR was founded after 9/11 because they recognized that some people did something and that all of us were starting to lose access to our civil liberties,” she said, incorrectly stating the organization's history. The group was actually founded in 1994, although it became much more active following the terror attacks.

Most prominent among her critics was President Donald Trump, who tweeted a video of the Twin Towers being hit by airplanes and burning down interspersed with a cut of Omar saying "some people" did "something" when speaking about the terror attacks. His video echoed criticism of Omar on the front page of Thursday's New York Post, which included the headline "Here's Your Something" over an image of the Twin Towers burning.

WE WILL NEVER FORGET! pic.twitter.com/VxrGFRFeJM — Donald J. Trump (@realDonaldTrump) April 12, 2019

Democratic presidential contenders denounced that tweet over the weekend as an attempt to incite violence against Omar, a freshman member of Congress who has previously found herself at the center of debate over controversial remarks she made about Israel and its lobbying efforts — comments that were denounced by Democrats.

Omar said in a statement Sunday night that she has received increased death threats since Trump's tweet Friday evening and that many of those threats directly referenced his video.

"Violent rhetoric and all forms of hate speech have no place in our society, much less from our country's Commander in Chief," she said in the statement.

House Speaker Nancy Pelosi released a statement Sunday demanding Trump remove the video and saying she spoke with the House sergeant-at-arms following the president's tweet "to ensure that Capitol Police are conducting a security assessment to safeguard Congresswoman Omar, her family and her staff."

"They will continue to monitor and address the threats she faces," Pelosi, D-Calif., said. "The President’s words weigh a ton, and his hateful and inflammatory rhetoric creates real danger. President Trump must take down his disrespectful and dangerous video."

Omar has already been subjected to numerous death threats over the past months.

Ilhan Omar is a leader with strength and courage. She won't back down to Trump's racism and hate, and neither will we. The disgusting and dangerous attacks against her must end. — Bernie Sanders (@BernieSanders) April 13, 2019

President Trump's inflammatory and dangerous rhetoric towards Ilhan Omar is jeopardizing her safety. He is deliberately putting her and all Muslim Americans in harm's way. — Jay Inslee (@JayInslee) April 13, 2019

The President is inciting violence against a sitting Congresswoman—and an entire group of Americans based on their religion. It's disgusting. It's shameful. And any elected leader who refuses to condemn it shares responsibility for it. — Elizabeth Warren (@ewarren) April 13, 2019

For two years, this President has used the most powerful platform in the world to sow hate & division. He's done it again. Putting the safety of a sitting member of Congress @IlhanMN at risk & vilifying a whole religion is beyond the pale. I'll be blunt — we must defeat him. — Kamala Harris (@KamalaHarris) April 13, 2019

Trump’s recent attacks on @IlhanMN are unacceptable—this is the same language that gives extremists license to carry out violence against our Muslim brothers and sisters. https://t.co/bUpAuFqzkH — Cory Booker (@CoryBooker) April 14, 2019

Former Texas Rep. Beto O'Rourke also defended Omar during a campaign event in South Carolina, saying, "This is an incitement to violence against Congresswoman Omar, against our fellow Americans who happen to be Muslim." On Sunday, Warren added to her criticism, saying Trump "is trying to incite violence and to divide us."

"Those who don't speak out in the Republican leadership are complicit in what he is doing," she added. "It is wrong."

Rep. Tim Ryan of Ohio said Sunday night on MSNBC's "Kasie DC" that Trump was trying to "scare people."

"I think it's an opportunity for Donald Trump to really try to discriminate against Muslims and to try to scare people," he said. "This is nonsense. This is not how you heal our country. This is not how you lead."

Omar's comments were a feature of the Sunday political talk shows, where both Democrats and Republicans addressed them.

Asked about Trump's tweet, White House press secretary Sarah Sanders told ABC's "This Week" Trump "is wishing no ill will and certainly not violence towards anyone, but the president is absolutely and should be calling out the congresswoman for her not only one time, but history of anti-Semitic comments."

"The bigger question is why aren’t Democrats doing the same thing?" she added. "It’s absolutely abhorrent the comments that she continues to make and has made and they look the other way."

Sanders added that she finds Omar's comments "to be absolutely disgraceful and unbefitting of a member of Congress, and I think that it’s a good thing that the president is calling her our for those comments."

On CNN's "State of the Union," House Judiciary Chairman Jerrold Nadler, D-N.Y., said he had no problem with Omar's comments.

"She was talking about discrimination against Muslim Americans," he said. "And she just said that, after that happened, it was used as an excuse for lots of discrimination and for withdrawal of civil liberties. I have had some problems with some of her other remarks, but not with that one."