"And yet we get no help from the state of California".
The memory of anti-Trump riots - such as the melées in San Jose in June 2016, when left-wing activists chased and beat Trump supporters leaving a rally - has lived on in periodic flare-ups between various political groups, both mainstream and fringe, across the state.
Some residents in the San Diego and Los Angeles areas reportedly plan to protest Trump's visit.
The president will not be swayed by California Republican lawmakers concerned the wall is a waste of money, White House spokeswoman Sarah Huckabee Sanders told reporters Monday. "It's something that he's going to continue to push for".
The president will arrive in San Diego Tuesday morning, marking the first time he has visited the Golden State since taking office.
"I mean, frankly, if I wanted to pull our people from California, you would have a crying mess like you've never seen in California", Trump said weeks ago, warning there would be "crime like nobody has ever seen crime in this country".
Trump's visit comes just days after his Justice Department sued to block California laws created to protect people living in the U.S. illegally and U.S. Attorney General Jeff Sessions followed up with a speech in Sacramento that was immediately denounced by Brown, who said the Trump administration was "full of liars".