He can't get votes other than from evangelicals. Good.

The question is, how long will he carry on? Unfortunately, it looks like he will go on for a while, because he seems to be having a good time, and he'll probably continue to get funding from his own base.

One of the reasons that Thompson should stay in the race is that so many others are. As long as he persists (and if he can continue the momentum that he was starting to build out of South Carolina) he may be able to pick up enough delegates to have a seat at the table in Minneapolis (and an outside shot at becoming a consensus nominee). And he has to continue to pull conservative votes from Huckabee.