I finally found a video of Howard Dean's speech, and it just didn't look as bad as it was supposed to. He just looked excited and you could see him gaining more excitement as it went on. I think that people who really like to be in front of crowds sometimes get this effect- you're in the middle of a crowd, and they are just smiling and yelling 'yea~!" and so you get more excited, and then they get more excited- kinda a feedback effect. I of course am only theorizing- I hate being in front of crowds, but being a presidential contender, Dean just might positively love that sort of thing. Then again, I did not see the clip as say, played on Foxnews, which probably looked much worse.