Ann Coulter said the left has historically always been more violent than the right.
Antifa, Black Lives Matter, the Weathermen, Occupy Wall Street, and other violent movements were all spearheaded by the left, the author and conservative columnist said on "Justice" Saturday.
"The left is constantly ginning their side up to be violent."
Liberal speakers are treated with "the utmost respect" at conservative colleges, she said, but not so conservative speakers on liberal campuses, she pointed out.
Coulter was prevented from speaking at the University of California at Berkeley in April when violent protesters made it unsafe for her to appear.
The anti-Trump movement called antifa is only the latest incarnation of left-wing violence, Coulter said.
"The country is in a civil war," she concluded.