This whole "Resolution as Leverage" idea is intellectually dishonest. When the vote was taken in 2002, it was politically expedient to vote in favor of the resolution. Now that the Presidential campaign is in full swing, these candidates are trying to appeal to their base constituency by stating that they only voted for it as diplomatic leverage but has no intention to go to war. It is an untenable position to declare support for the resolution and in the same breath condemn the war.
Here is a portion of the text they overwhelmingly approved:
(b) PRESIDENTIAL DETERMINATION - In connection with the exercise of the authority granted in subsection (a) to use force the President shall, prior to such exercise or as soon thereafter as may be feasible, but no later than 48 hours after exercising such authority, make available to the Speaker of the House of Representatives and the President pro tempore of the Senate his determination that
(1) reliance by the United States on further diplomatic or other peaceful means alone either (A) will not adequately protect the national security of the United States against the continuing threat posed by Iraq or (B) is not likely to lead to enforcement of all relevant United Nations Security Council resolutions regarding Iraq;
(2) acting pursuant to this resolution is consistent with the United States and other countries continuing to take the necessary actions against international terrorists and terrorist organizations, including those nations, organizations or persons who planned, authorized, committed or aided the terrorists attacks that occurred on September 11, 2001.
In order for "Resolution as Leverage" to work, there must be true resolve behind the resolution. There also must be a track record of action when the "lever" does not accomplish its desired result. U.S. foreign policy under the Clinton Administration was heavy on talk and light on action. Talk is acceptable when the objectives are being achieved but when talks break down and no action follows, the "lever" becomes flaccid and powerless. Nothing illustrates this better then the words of Uday Hussein a few days into Gulf War II:



