Charles Krauthammer analyzes the first presidential debate on FOX News:
CHARLES KRAUTHAMMER: It was not exactly the knock out fight that we thought. It was a spirited fight. I think in the end it was something like a draw. But I do believe that the draw goes to the challenger in the sense that Trump did not go over the line. And the very fact he could go 90 minutes on the same stage ultimately elevates the challenger, that's just automatic for any debate of that support.
I think he did allow himself to get very defensive and she exploited that. She kept coming back for things where he wasted a lot of time on taxes, on some of the other issues he felt personally about, and, as a result, he missed a lot of opportunities. She presented herself as she always does. Solid, solid, knows her stuff, not terribly exciting but reliable. I think that is the best she can do. Likable, she couldn't but that is not something within her reach.
He contained himself in the sense that I don't think he committed any gaffes but he allowed himself -- she could find out something personal about him that would make him down rabbit holes at a time when he had wide openings to go after her on e-mails and other items, and let them go.