[TBBT]

Maybe Newt should step aside and support Santorum, the most conservative candidate still in the race. Santorum is good on the issues, including immigration and has none of Newt’s baggage.

In a way I'd almost agree with that. But it's too late now. Had the Santorum we saw in the last 3 debates shown up before Iowa, then he might be a player and the best option to go with (even though he is also an imperfect conservative). Now, however, it's just water under the bridge. Santorum has no chance.

[kabar]

Santorum has been hurt by a lack of money. If he does well in FL, i.e., he is a close with Newt for second, then he may pick up some momentum if he decides to stay in the race. The upcoming primaries favor him more than Newt. And there is no doubt that a convincing Romney win in FL could winnow the field down some more.

If Santorum gets out, it will be interesting to see if he will endorse anyone. Based on the debates, he seems more upset with Romney on issues, especially Romneycare, and more upset with Newt personally based on serving with him.