I can still remember when Dean was polling 3% nationally...
TCash is right, the media made Dean and he broke himself.
Well, I generally agree with the spirit of the comments being made but feel obliged to point out that media coverage of Dean wasn't all that great until he raised the most of any Democrat in the second quarter. He made himself, and the media took that and arguably made it much more than it actually was, and the Iowa voters reacted to that. But then the media took the results of Iowa and projected it across the country, which is just as distorting.