Saw him speak in Boca Raton a few years back. There were a number of liberals in the audience, which surprised me. I knew one of them personally, and asked her why she was there. She said, "He's brilliant. I may not agree with everything he says, but I respect the way he says it. He talks to people -- not over people. How can anyone not like this guy, regardless of political affiliation?"
Sums it up for me.