The Dean front runner myth
Dean is only marginally the front runner because of his superior fundraising and organization. The polls are starting to tell a different story. Dean has a 4 point lead in the national poll and a slim lead in many states. He's hardly a front runner, and at this point, should the field narrow, he can't stand up against a single other candidate who can raise money.
Dean's best hope of winning the nomination is that most of the candidates in the field stay in the race for a while. Even that scenario isn't particularly rosy for Dean.
Imagine if Gephardt won in Iowa. Not only would he stay in the race, but he'd pick up some delegates. So would Kerry, Dean, and Edwards. In New Hampshire, Kerry, Clark, and Dean all stand to pick up substantial delegates. In South Carolina, even Al Sharpton stands to receive a few delegates. Each candidate keeps these delegates and can potentially decide to release them to one camp or another - I know it sounds sketchy, but if this thing drags on for a while, it might come down to that.
So Dean's problem is that if the field narrows to 2, he probably can't stand up against that one candidate.
If the field stays crowded, he has a better chance, but he'll have to hope that the various "anti-Dean" candidates don't form coalition - or even tickets - and surpass his delegate lead.
It's all very fascinating.