The House Democrats' campaign arm on Thursday released a campaign ad containing audio of Montana House GOP special election candidate Greg Gianforte allegedly assaulting a reporter.

Gianforte was charged with misdemeanor assault following an alleged physical altercation with The Guardian political reporter Ben Jacobs on Wednesday evening, just hours before voters head to the polls. Jacobs says Gianforte "body slammed" him after being asked a question.

“I’m sick and tired of you guys! The last guy who came in here you did the same thing! Get the hell out of here! Get the hell out of here!” Gianforte yells at Jacobs, according to the audio.

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“You just body slammed me and broke my glasses,” Jacobs tells him in response.

The ad by the Democratic Congressional Campaign Committee (DCCC) includes press quotes about the incident.

Toward the end of the audio, the ad reads "Charged with a crime. No business being in Congress" before notifying viewers that the polls close Thursday night.

Gianforte is facing off against Democrat Rob Quist to fill the seat vacated by Ryan Zinke, who is now secretary of the Interior.

Three Fox News reporters confirmed Jacobs’s account of the assault late Wednesday.

A spokesman for Gianforte said in a Wednesday statement that Jacobs "entered the office without permission, aggressively shoved a recorder in Greg's face and began asking badgering questions."

"Greg then attempted to grab the phone that was pushed in his face. Jacobs grabbed Greg's wrist, and spun away from Greg, pushing them both to the ground. It's unfortunate that this aggressive behavior from a liberal journalist created this scene at our campaign volunteer BBQ," the statement continued.

The DCCC called on Gianforte to resign from the race late Wednesday.