I think that Sen. Clinton will wind up winning the election in IA. Obama has the "enthusiasm", but it is very hard to predict what will happen next.
I think that Edwards will pose a serious challenge to Obama than Clinton and Richardson will jump with Clinton and make a pact with her, like Kucinich did with Edwards and then run for the U.S. Senate.
He knows that he will be worthless after 2010, when he will retire; he wants to be involved and the best way to do that is if he runs for Senate and lets Diane Denish, the Lt. Gov. take over!
a lot of Iowa depends on how everyone else breaks in the end -- where are Richardson supporters going to go in the districts where he doesnt make it? Dood? Biden? Obama (in some districts, but not most)? Biden?
It will be very close in the end between Edwards and Clinton IMO