The bill, authored by Omar, would form a special envoy for monitoring and fighting Islamophobia and include state-sponsored anti-Muslim brutality in the department's annual human rights reports.
The measure passed by a razor-thin 219 to 212 margin directly after the Democrat-majority chamber voted to refer Trump Administration Chief of Staff Mark Meadows to the Justice Department for criminal charges over his refusal to testify before the January 6 committee.
The debate over Omar's measure was derailed earlier this evening when GOP Rep. Scott Perry called Omar anti-Semitic.
He also implied she had connections to a terrorist organization only weeks after GOP Rep. Lauren Boebert joked Omar was a suicide bomber.
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Audible gasps could be heard from Democrats in the chamber after Perry stunningly insisted the Democrat-backed bill was written to silence "critiques of terrorism."
The hour-long debate was paused after House Democrats lodged a formal objection and asked Perry's remarks to be stricken from the record.
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Perry derided the "lack of definition" of Islamophobia in the bill's text and announced it was purposely vague because "you're either going to be persecuted or you're not depending on who you vote for."
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He dismissed the legislation as "attempts to placate an anti-Semitic member of this chamber," referring to Omar.
"During last week's markup of this legislation in the Foreign Affairs Committee, I was assailed by my colleagues on the other side of the aisle, they told me I was Islamophobic, nasty, mean, and rude, why? Because I offered amendments that would have prevented American tax dollars from going to organizations with ties to terrorism," Perry said.
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He proceeded to insist that Omar, one of only three Muslim House lawmakers, was part of one of those organizations.
"American taxpayers shouldn't be forced to pay terrorist organizations, organizations that the maker of this bill is affiliated with," Perry said.
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"And by intentionally leaving the definition blank in this bill, the gentlelady and my friends on the other side of the aisle are creating an office in our state department that will likely spew anti-Semitic hatred and attack Western ideas throughout the world; under the farce of protecting Islam."
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On the House floor Tuesday evening Omar thanked Democratic leadership in Congress for their commitment to the legislation.
One of the bill's co-sponsors, Rep. Janice Schakowsky of Illinois, who is Jewish, announced Omar had been the subject of "relentless attacks and horrifying threats, not just from her fellow Americans but even within the halls of Congress."
"And as a Jew myself, I see the parallel quite directly between anti-Semitism and Islamophobia - and we need to be combatting both," she stated.
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