Look, I've never defended anyone's IWR vote because it's not defensible IMO, but her mistake was in trusting Bush, not in wanting an invasion:
snip: "We and our NATO allies did not depose Mr. Milosevic, who was responsible for more than a quarter of a million people being killed in the 1990s. Instead, by stopping his aggression in Bosnia and Kosovo, and keeping on the tough sanctions, we created the conditions in which his own people threw him out and led to his being in the dock being tried for war crimes as we speak.
If we were to attack Iraq now, alone or with few allies, it would set a precedent that could come back to haunt us. In recent days, Russia has talked of an invasion of Georgia to attack Chechen rebels. India has mentioned the possibility of a pre-emptive strike on Pakistan. And what if China were to perceive a threat from Taiwan?
So Mr. President, for all its appeal, a unilateral attack, while it cannot be ruled out, on the present facts is not a good option.
snip: While there is no perfect approach to this thorny dilemma, and while people of good faith and high intelligence can reach diametrically opposed conclusions,
I believe the best course is to go to the UN for a strong resolution that scraps the 1998 restrictions on inspections and calls for complete, unlimited inspections with cooperation expected and demanded from Iraq. I know that the Administration wants more, including an explicit authorization to use force, but we may not be able to secure that now, perhaps even later. But if we get a clear requirement for unfettered inspections, I believe the authority to use force to enforce that mandate is inherent in the original 1991 UN resolution, as President Clinton recognized when he launched Operation Desert Fox in 1998.
snip: So it is with conviction that I support this resolution as being in the best interests of our nation. A vote for it is not a vote to rush to war; it is a vote that puts awesome responsibility in the hands of our President and we say to him - use these powers wisely and as a last resort. And it is a vote that says clearly to Saddam Hussein - this is your last chance - disarm or be disarmed.
http://clinton.senate.gov/speeches/iraq_101002.html She also voted for the Byrd Force-Termination Amendment: ... would provide for the termination of Congressional authorization of the use of force by one year after the resolution's enactment unless the president certifies that extension is necessary or Congress enacts into law a one-year extension of the authorization.
http://www.tpmcafe.com/blog/electioncentral/2007/apr/05/compare_and_contrast_hillarys_and_edwards_votes_on_iraq