This article in the DMR says basically the same thing:
http://caucuses.desmoinesregister.c...-2-days-left-to-go-santorum-has-the-hot-hand/
Key language:
"The former Pennsylvania senator embodies the old political saw: Work like hell and get lucky at the end. He’s logged over 100 days in Iowa, more than any other candidate, toiling in virtual obscurity. Caucusgoers are traditionally inclined to reward such persistent courting — but they seemed unsure Santorum would make it to the church, let alone the altar. Suddenly, lightning struck, in the form of a CNN poll released Wednesday that showed Santorum in third place.
Selzer said her polling, which started on Tuesday, didn’t show Santorum catching fire until after CNN’s poll came out, with an accompanying stampede of media attention. There’s a difference in methodology between the two polls — CNN surveyed registered Republicans, while Selzer also includes registered independents who intend to participate in the caucuses.
Voters apparently responded to the new information suggesting Santorum was more viable than they had previously thought."
But voters who would change their minds so easily just can't be very committed. Many of them probably won't bother to caucus. I think the passion of the Paul supporters will carry the day.