This week Brown has been using Civil War metaphors at his public events to describe the deep divisions in California, and the entire country for that matter, preaching with the passion of a born-again that the country is dangerously polarized.

"We are at a point of civil discord, and I would not minimize the risk to our country and to our state. It is not trivial. I've been around a long time, I'm a student of history, I'm a student of contemporary politics. We are facing what I would call a 'regime crisis.' The legitimacy of our very democratic institutions are in question," he said.