Iowa Gov. Tom Vilsack will get whalloped in his bid for the presidency. I'd be surprised if he could muster 10% in NY or CA. He's a pretty popular governor so perhaps he'll win Iowa pretty easily. If that's the case, then you have to ask if other candidates will even bother canvassing Iowa and if it's worth their time. That would mean Iowa won't be a bellweather in '08 and all the people there will be ignored--then they'll know how the rest of us feel. This puts more focus on New Hampshire and Nevada. Should he chose to run, I believe Gen. Wes Clark will do really well in both those states amongst Dems--he and his volunteers campaigned pretty hard for candidates that the other potentials didn't even notice, from top of the ticket races to the state legislature.
I think it's obvious that Clark is my top choice in '08, and now that Dems won the Senate, I think this puts Clark in the best position for '08 since Warner is out. The GOP is probably pull their grade school hijinks over the next couple years so I have a hard time imgaining a viable Senate candidate emerging as a clear leader. There are a lot of competent Senators, but most of the well deserving committee chairs don't seem to have presidential ambitions and the ones that do are going to have a hard time getting out of the shadow of Harry Reid, who has been--and hopefully continue to be--a solid leader.
I won't predict Clark will be the nominee--heck I don't even know if he'll run--but I know I'll be helping out. You should too!