From ABC News.

After Pres. Trump said he thought it would be a "great thing" if border czar Tom Homan arrested California Gov. Gavin Newsom, ABC News’ Karen Travers asked what crime Newsom had committed.

“Well, I think his primary crime is running for governor,” Trump said.

Newsom responded on social media, writing, "The President of the United States just called for the arrest of a sitting Governor. This is a day I hoped I would never see in America. I don’t care if you’re a Democrat or a Republican this is a line we cannot cross as a nation — this is an unmistakable step toward authoritarianism."