He gave up on the station in large part because of the way they utilized him. Much like they do with Sal today. If someones on vacation or they need to fill time, hey you're our guy!!
He got tired of it and it showed. I would get tired of it to being told you're covering the morning show, fill in on the afternoon show and then do your own show at night. Sal doesn't seem to care and happily obliges the station.
A great point. Why do members of media or sports, entertainment whatever think we give a rat's ass about their political beliefs and we should be subject to them. They have a platform and use it but their beliefs have nothing to do with what got them there. If I wan't politics I'll tune into a political channel.