And that's one more reason, if another were needed, to get these hounds out of office by any means necessary. Do not go for the old lesser-evil scam and vote for some supposedly reformed Democratic warmonger in '06 or '08. And be sure to let the party know you won't.
I personally have no hope at all for the Democratic Party. But I imagine some of y'all reading this may not be quite at that point yet. Well, let me suggest to you that if you want to have any hope of turning your party into a force for good, your absolute top-priority Job One is to purge the Liebermans, the Hillary Clintons, the Chuck Schumers, the Joe Bidens. You may well end up with a smaller party in Congress, but if it's a party that's actually willing to act like the opposition, you'd be infinitely better off.
Now the fact is you don't have sufficient clout within the party to deny them the nomination. But you might very well be their margin of victory in the general election. Once again: if you live in a district, or a state, represented by a Democrat who voted for the war, serve notice on the party that you will not vote for that person again. And stick to it. Come next November, vote for a third party or write somebody in.
You really have nothing to lose. These people are repeat offenders, and they will kill again.