Republican presidential front-runner Donald Trump Donald John TrumpOmar fires back at Trump over rally remarks: 'This is my country' Pelosi: Trump hurrying to fill SCOTUS seat so he can repeal ObamaCare Trump mocks Biden appearance, mask use ahead of first debate MORE’s campaign on Tuesday continued to double down on the real estate mogul’s controversial claim that he saw “thousands and thousands” of Muslim Americans cheering in New Jersey following the terror attacks of Sept. 11, 2001.

"For the mainstream media to go out and say that this didn’t happen is just factually inaccurate,” Trump campaign manager Corey Lewandowski told Breitbart News, as first reported by People For the American Way’s Right Wing Watch.

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Lewandowski claimed the Trump campaign “has provided [the media with] local media outlets that have covered” scenes of Muslim Americans celebrating the 9/11 attacks, but he says the media is suppressing this footage.

“[Trump has] provided many opportunities for them to go and see it but they have their own agenda, the media has their own agenda,” Lewandowski said. "They want to try and discredit as many people as possible so they can have an establishment candidate come in and think that everything is going to be the same because they are all controlled by the special interests and they are all controlled by the media and it is what the American people are just so tired of.”

Trump started a firestorm when he first made the claim over the weekend, and he has stood by the comments on several occasions even as several fact-checkers concluded that the incident did not occur as described.

Trump previously cited a Washington Post article from the week after the attacks as proof of his claim, but the author of the article has publicly opposed the use of his story as supporting evidence.