According to Investor's Business Daily, when asked "How important is a U.S. victory in Iraq," Democrats say yes by 53 percent, Republicans 85 percent. When asked "How hopeful are you that we will succeed," 43 percent agreed, to 80 percent of Republicans.
As the site says, "The Congress the terrorists wanted is doing their bidding."
From Instapundit: "To some people, Vietnam wasn't a defeat, but a victory. To them, the right side won. And lost. Naturally, they're happy to repeat the experience."
UPDATE - Check out this video from 2003, and you'll even feel sorry for Hillary as she faces the insane rantings of Code Pink.