Spit on once again.
There's still 40% of the voters who will vote for Kerry, no matter what turns up. Kerry could give up bathing and campaign in the nude from now 'til election day and his base will still turn out for him. That's the way it is. Fortunately, those few who are undecided will now have some serious doubts, and some of his less rabid supporters may stay home. So things should work out well.
Sad, but incredibly enough, true.