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I'm not a Gingrich fan. He's just difficult to work with. It's either Newt's way or the highway.

I think Newt Gingrich has a proven track record of changing Washington and getting results.

Mr. Obama would be a disheartening president even during a super boom, with his grim demeanor and empty rhetoric, as well as his obvious hatred of business bravado.

So I'd be quite happy to have a three-hour Lincoln-Douglas-style debate with Barack Obama. I'd let him use a teleprompter. I'll just rely on knowledge. We'll do fine.

What would be the nicest thing I could say about Newt Gingrich? He may be one of the great supporters of the humanities, because you have people who don't want to study the social sciences, because it's not profitable, and now Newt, as the highest-paid historian in American history, may be an encouragement to people to study history.

Anything can go wrong in a debate, and Obama is not a perfect debater.

Newt Gingrich is a boastful kind of guy. But when it comes to Wall Street, the former House speaker is surprisingly modest.

Newt Gingrich's job to capture the Congress was to give Republican candidates an edge and a distinction from their Democratic opponent. That required a very high profile, some very strong language.

In a crazy world where he would get nominated, I'd like to see Obama run against Herman Cain. That would be fantastic. If Herman Cain became president, there'd be a certain sort of morbid curiosity for me.