The peacnik left is a danger if they manage to nominate Dean. For certian, any Dem candidate will get 30-40% of the vote, or more. Those people will be subjected to months of propaganda at the hands of the campaign and media.
This could affect the political debate for years.
Look what happened after McGovern lost in a landslide. Nixon was drummed out of town on trivial issues that wouldn't have bothers anyone in an LBJ or JFK administration. And we got decades of hard core leftist congresses that we still live under in our court system.
I hope Dean can be stopped in Iowa or NH. Or we're in for decades of even harder leftism.