Actor Tom Arnold has been an anti-Trump advocate from the beginning but now his hatred of the president has earned him a visit from the Secret Service. The agents were reportedly investigating a Tweet where the actor challenged President Trump to a fight.

According to Fox News:

The Secret Service paid a visit to Tom Arnold last month after he tweeted challenging Donald Trump to a fight, the actor confirmed Monday.

In a video Arnold sent to Mother Jones published on Monday, the “True Lies” star is seen speaking with agents in his Los Angeles home on Oct. 25.

“We’re not the First Amendment police,” one agent says in the clip. “You’re free to say whatever you want … [but] once a certain line is crossed … what we’re concerned with is the type of audience it could reach, that it could incite somebody.”

Arnold was cooperative with the agents and explained that he understood the ramifications of his posts.

Arnold issued an apology for using words that could possibly incite violence but also used the opportunity to slam the president for using words in which Arnold thinks incites violence.