David Gergen: “I just don't think the President can sit here and have Gadhafi in power indefinitely.”

I think the turning point that came were the midterm elections. The fever broke with those midterm elections. And what we've seen since then is a steady decline in Trump's credibility and in his position with the American people, and a…

I don't think Trump is out of the woods, even though his poll numbers are not only staying up, they have actually been strengthened some.

I think a lot of Americans do see it as disqualifying. And they're worried about it.

If he comes out and throws cold water on this, then I don't think it goes anywhere.