Actually, Leno tracks to the right.
He does some good things for the service members to.
And, he has great taste in vintage motorcycles, LOL.
That being said, I like the guy because he works hard, isn't an Elitist snob and he is a car guy.
I know people who have met him and he is the real deal, but he is a Democrat and try as he might, his Liberal views come through if you pay attention to what he is saying and how he treats people on our side of the aisle.
Letterman has no pretense, his Liberal bias is a badge of honor and his obnoxious behavior would never be tolerated if Democrats were his target instead of Republicans.