A few weeks ago, when former Vermont Gov. Howard Dean declared his intention to run for chairman of the Democratic National Committee, news reports had the general tone of "Get this, that crazy scream guy is back, and he wants to run the party." Now, days before the vote, his victory is a "fait accompli." How did this happen? Are Democrats suicidally crazy? Wait. That's too easy. Let me rephrase the question. Why are Democrats suicidally crazy? The conventional rap against Dean as DNC chairman is essentially the same as the conventional rap against him as presidential candidate a year...