Howard Dean had just one defining media moment, but the bad kind, and that’s why he didn’t end up as the Democrat nominee.
No offense, but you're proving my point for me. Dean had defining moments aplenty--from Gore's endorsement (how quickly we forget what a HUGE thing that was then), his leading in "superdelegates," his getting online funds to match those given to VP Cheney at a big dinner, the AFSCME endorsement, forgoing matching funds (very noteworthy), etc. The scream is NOW his defining moment, but up till then he was doing everything right, everything those who are advising Fred here on FR wish Fred would do. And look at what happened.