The Hillary Miracle -- One Example
The day after the Iowa caucus, I chatted with a woman in the Epping Wal-Mart, a Democrat who was undecided about who to vote for. She really liked all three of the top candidates. She said she had been leaning to Clinton, but was now thinking of voting for Edwards because she wanted to see him continue in the race along with the two heavyweights.
I'd bet you anything that when the last-day polls (and pundits) showed Hillary in trouble, she ended up voting for Clinton, who she likes anyway, to protect her from elimination.
Did this happen throughout the state? I wouldn't be at all surprised.