Not Krauthammer:
Frum doesn't believe that Gingrich will be the nominee:
In many ways Perry is a stronger candidate than Newt because Perry is less disliked by the Washington Republican leadership.
Seth Masket points out that Newt has few visible supporters to defend him:
The key thing here is that Gingrich has no backers. Romney can slip up — make a silly statement or give a bad interview — and there are legions of journalists and elected officials who can explain it away or provide context or still point to his other qualities as a candidate. When Gingrich messes up — as he most assuredly will at some point in the next few weeks — no one's got his back. He'll be on his own, forcing to either recant what he said (flip-flopper!) or double down (loony!). What will his next apostasy be? I don't know, but it's exciting to watch.
The Dish 