I agree.
As much as Santorum was an anti-Romney candidate in Iowa, he was, in my view, much more so the ANTI-GINGRICH candidate.
He’s the alternative to what a few months ago was seen as the “only” alternative to Romney: that is, Santorum is the ALTERNATIVE to Gingrich, and in a big way.
So Santorum aligning with Gingrich, the very candidate that is in many cases pushing votes away from himself and toward Santorum, would be stupid and likely political suicide.
If you look around FR you’ll see the pro Gingrich crowd already warming up to destroy Santorum while proclaiming Newt to be a saint.