WI/AHC: Joshua Norton "Emperor Norton I" becomes a politician

Emperor Joshua Norton I, Self-proclaimed "Emperor of the United States", and "Protector of Mexico" was the most popular man in San Francisco. He never had any real imperial power.

What if, with a POD either earlier or later in his life, Joshua Norton tries his hand in politics. Although he was critical of the US Government, what if he decided to go political, most likely a Independent.

Best case position, is either Mayor of San Francisco, maybe stretching it a bit position, Governor of California or Senator. Unlikely ASB position, President of the USA, (He wasn't a natural citizen)

So, if he gained any of those position (Except president) what would policies he would be able to do?