It’s obvious from the recent polling in Iowa that the top three candidates are bunched closely together. The ground game will decide the outcome on January 3.

Jerome Armstrong, founder of MyDD and “blogfather” of Daily Kos, came up with this prediction about how turnout will influence the Democratic results:

Turnout numbers        Favors

<150,000               Edwards

150-170,000            Clinton

>170,000               Obama

Basically, if it’s all the tried and true 2004 caucus goers, plus another 25% or so, that Edwards has the advantage. If it winds up being a blown out caucus that has greater than 50,000 more attendees than 2004 (most of the polls are working off this assumption), then Obama wins. If it’s somewhere in the middle, bigger than what would be usual but less than what’s being projected in the polls, then it’s basically going to be something like this poll.

Although many speculate that a record turnout would favor Obama and Clinton, I am hoping for good weather and a strong turnout on January 3. I don’t want an Edwards victory to be spun away as the result of a snowstorm.

I highly doubt turnout will exceed 150,000, though. Many regular caucus-goers will miss the caucuses this year because they’d already made vacation plans and will be out of state on January 3.

What do you think about Jerome’s prediction? And how do you think an unusually high or low turnout would affect the Republican results? I have to believe that Huckabee’s ground troops will turn out for him no matter what the weather.