I'm not sure if he's a converted conservative or just someone who is smart enough to know that Liberals don't draw paying customers to their comedy acts anymore and/or that knee jerk liberalism in the face of international terrorism is NOT funny.
Leno is IMHO a long time closet conservative. He collects classic autos, as you know. Well he is a frequent columnist for Popular Mechanics (Yes, I said Popular Mechanics) and his take on America, industry, craftsmanship and values is absolutely mind bogglingly inspiring.
He also funds and runs a scholarship for gifted young mechanical engineering students, and is a major philanthropist toward votech schools. All low key, with no bragging. Leno is the real deal.