You're right, Gore is a flip-flopper, and a lot of Democrats I know didn't even like him. It's not a Democrat-only disease though.
http://www.msnbc.msn.com/id/4179618/
Russert: You do seem to have changed your mind from the 2000 campaign. In a debate, you said, "I don't think our troops ought to be used for what's called nation-building.'"
President Bush: Yeah.
Russert: We clearly are involved in nation-building.
President Bush: Right. And I also said — let me put it in context. I'm not suggesting you're pulling one of these Washington tricks where you leave half the equation out.
But I did say also that our troops must be trained and prepared to fight and win war and, therefore, make peace more possible. And our troops were trained to fight and win war, and we did, and a second phase of the war is now going on. The first phase, of course, was the Tommy Franks troop movement.
Russert: But this is nation-building.
President Bush: Well, it is. [More non-answer follows]
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Wow! After reading all that, I'm not sure I remember what the definition of "is" is anymore.