Why did Perry do so well in southern Iowa? Do they speak with a twang and say ya'll in those parts?
After seeing those results, I think that's the case: both Edwards and Huckabee won in a landslide there.
There must be some Missouri influence, and Missouri (especially rural Missouri) has more Southern influence than any other Midwestern state.
Good indicator of Santorum's problem - to win, or even make a real go of it, as the stronger conservative, you need to win the South. I'm not sure that Santorum will resonate there. Gingrich and Perry could have been viable, at least as Huckabee/Edwards like sectional candidates.
This nomination is all over but the shouting, barring late entries.