The clip, which had been viewed more than 9.4 million times as of Sunday afternoon, ends with the words: "SEPTEMBER 11 2001 WE REMEMBER".
The US President went on to say Mrs Pelosi "should look at the anti-Semitic, anti-Israel and ungrateful US HATE statements Omar has made" before defending her. "She is out of control, except for her control of Nancy!" he tweeted. "The memory of 9/11 is sacred ground, and any discussion of it must be done with reverence", she said.
Asked in a separate appearance on "Fox News Sunday" whether Trump is anxious he was inciting violence against Muslims or Omar, Sanders said no. Menacing music accompanies Omar's words.
"This is risky incitement, given the death threats I face", Omar tweeted.
Pelosi touted her own liberal upbringing and accomplishments representing the deeply Democratic voters of San Francisco.
Launched Saturday by the Women's March, it accuses the president of "inciting violence and engaging in hate speech" through the "propaganda video targeting Congresswoman Omar" he posted Friday which uses an out-of-context phrase Omar said in reference to 9/11.
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Omar: 'no one person - no matter how corrupt, inept, or vicious - can threaten my unwavering love for America...'
But Pelosi also stuck up for Omar in her current standoff with Trump.
While many have likewise "admonished" Pelosi for failing to mention Omar by name in her chastisement of Trump (at least initially), the outrage over Pelosi's purported cowardice belies the fact that most of the disgust for Trump has little to do with protecting Omar and more to do with the politics of spectacle that has become the lifeblood of the American news cycle.
In an emotional speech last month to the Council on American-Islamic Relations, Omar spoke out against discrimination against and suspicions of Muslims. She won't back down to Trump's racism and hate, and neither will we.
When asked if he supports her, Sanders said, "I support a Muslim member of Congress not to be attacked every single day in outrageous, racist remarks".
Crenshaw also endorsed a tweet that claimed Omar "does not consider [September 11] a terrorist attack on the U.S. by terrorists" and repeated the far-right conspiracy theory that CAIR serves as little more than a front for foreign terrorists.
"I don't think it is the president who's putting her in danger".
The White House remained firm, saying Omar should be called out for her comments.
Unlike President George W. Bush-who actively sought to ease and reprisals against American Muslims in the wake of the attacks-during the 2015-2016 period Donald Trump was talking up his proposed total Muslim ban as he campaigned for president.