CNN

With just two weeks to go, a very large number of Democratic caucus goers in Iowa say they haven't decided who's going to get their vote.

The debate has been largely about "experience"– which is what Senator Hillary Clinton argues she has on her side– versus "change" which is what Senator Barack Obama promises to bring to Washington.

Also very much in the mix is John Edwards, who vows to do battle with the large corporations that have a stranglehold on the federal government. In fact recent polls in Iowa show Senator Edwards trailing Clinton and Obama by just a couple of percentage points, putting the three of them in a virtual dead-heat.

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