Other (Please specify)
Christie is a liberal, of sorts, and one of the few that can't be quickly demonized. People are tired of Democrats, sure, but they like those checks and they will vote their pocketbooks. Christie looks like a democrat. For all I know, he may be one in secret like a Marrano Jew. But he'll look delicious to the annoyed democrats and might actually win.
(I do not for one instant profess that I know whereof I speak. This is just how it seems to me. I could be incredibly wrong)