Matt O’Brien and Darius Tahir give reasons why Gingrich might not implode:
The Iowa caucuses are five weeks away. That’s probably not enough time for a new anti-Romney to emerge. And even if it were, who might it be? Ron Paul? Too extreme, even for the Republicans. Jon Huntsman? Romney without the organization and cash. Rick Santorum? Actually, I’ve always wondered why he couldn’t generate any buzz. But he’s had his chance to generate support – and he obviously can’t do it. So for Republicans who want anybody but Romney, Gingrich would seem to be the only option left.
Huntsman is nothing like Romney, and has plenty of cash. He's just engaged with reality, which disqualifies him from what is essentially a talk radio version of American Idol. Pete Spiliakos, on the other hand, expects Gingrich to get destroyed by the other candidates in the upcoming debates:
The next two debates pose several kinds of risks for Gingrich. The first is that the other candidates will publicize his record as a pro-federal health insurance mandate, pro-amnesty, pro-cap-and-trade, paid shill for Freddie Mac, crony capitalist, flip-flop artist.
That is bad (and very bad because true) enough, but it gets worse. There is a substantial fraction of Gingrich supporters who know most of this and look past it because they think the Republicans need a Gingrich-type as nominee to defeat Obama in the general election. They don’t like him because they think he is a good guy. They support him because they think he is rough and tough, and wicked smart, and an invincible debater. If Gingrich gets bruised by all the attacks that will come in the next couple of debates, he won’t just look like a pro-federal health insurance mandate, pro-amnesty, pro-cap-and-trade, paid shill for Freddie Mac, crony capitalist, flip-flop artist. He will also look like an overrated, washed up loser.
The Dish 