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A Breitbart reporter has filed a criminal complaint after accusing Donald Trump's campaign manager, Corey Lewandowski, of assault.

Michelle Fields alleged that someone grabbed her by the arm and yanked her down after Trump's press conference in Florida Tuesday night.

Trump was walking out of the venue surrounded by press and Secret Service personnel. 

Although Fields didn't see who grabbed her, she has relied on the testimony of Washington Post Reporter Ben Terris, who told her that it was Lewandowski.

Fields also tweeted a pictured of the bruise.

Lewandowski has denied Fields' allegations.

Trump accused Fields of making up the story after last night's debate. 

"Everybody said nothing happened. Perhaps she made the story up. I think that's what happened," he said.

A new Breitbart report highlights videos and images of the scene and says that Lewandowski may have been misidentified by Terris.

Watch the report from Fox Business Network above.

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