A staffer for Ohio State Treasurer Josh Mandel, who is running against Ohio Sen. Sherrod Brown, is accused of getting physical with a campaign tracker who was shooting video of Mandel.

In a video from the Ohio Democratic Party, tracker Juan Nino asked Mandel about an endorsement he received from a super PAC called Rev 18, short for Revolution 2018, that was founded by Mike Cernovich, a white nationalist blogger who has suggested date rape is not real.

Cernovich also peddled the “Pizzagate” conspiracy that Democratic operatives tied to Hillary Clinton ran a pedophile ring out of a Washington, D.C., pizza parlor.

Mandel previously tweeted a defense of Cernovich after the Anti-Defamation League criticized him and other so-called white nationalist figures.