With all due love and respect to Bigtree, who urges us in another thread "
It's enough to present your own candidate's record and intentions without tearing at other Dems," I think we have a Darwinian duty to form up into the usual circular firing squad and just have at each other's vulnerabilities, tooth and nail, between here and the nomination, 17 months from now.
First, because we must cultivate the habits of viciousness. We will need them when we face our politicla rivals in the fall of 2008. But secondly, and more importantly, we must test the mettle of each of our candidates--see how they react to adversity, how they react to the unending barrage of criticism, cheapshot and fair, that a nominee must endure to get to election day. This coming primary season is not an academic debate. It's a full metal proving ground. It's a demolition derby in which we should nominate whoever can become the last jalopy still able to putter around the stadium.
Since the rise of the Arkansas Project in 1992, presidential politics has become a bloodsport. We need to nominate a gladiator. Any candidate who is reduced to complaining that it's all just so unfair, or worse, who doesn't fight back at the cheapshots at all, is going to suck in the fall campaign. It's your duty to fight ugly, to test your opponents' weak spots. It's better to wreck 'em now before the convention than to wait until October and total the campaign once we're all riding in it.
(Not sure I buy what I just wrote, but someone needs to be a contrarian around here.)