Victor Davis Hanson says no:
It does not matter what Kerry would "really" wish to do, since the last two years of campaign rhetoric have earned him the worldwide reputation of the Bush antithesis, and thus his victory would, rightly or wrongly, be interpreted as a complete rejection of toppling Saddam and fostering a constitutional government in his place. His supporters and financial backers on the left would not tolerate anything less than a withdrawal.
Virginia Postrel says yes:
Contrary to what you might think from reading some libertarian-leaning bloggers, John Kerry is not running against George Bush's extravagant new Medicare entitlement or his expansive domestic spending. He is running against "tax cuts for the rich" and prescription drugs without price controls. Voting for "Not Bush" means voting for "not enough domestic spending" and "not enough taxes on the rich."
Ken Layne says hell no:
Worrying about "John Kerry" today is like worrying about what sort of steak you want as you die of starvation in a cave.