Looks like Hitchens is an undecided voter. The link is from 5 days later than his Nation column.
http://slate.msn.com/id/2108714/
"Christopher Hitchens, Contributor: Kerry
I am assuming for now that this is a single-issue election. There is one's subjective vote, one's objective vote, and one's ironic vote. Subjectively, Bush (and Blair) deserve to be re-elected because they called the enemy by its right name and were determined to confront it. Objectively, Bush deserves to be sacked for his flabbergasting failure to prepare for such an essential confrontation. Subjectively, Kerry should be put in the pillory for his inability to hold up on principle under any kind of pressure. Objectively, his election would compel mainstream and liberal Democrats to get real about Iraq."
What a friggin' flip-flopper, but strangely enough I agree with his overall assessment.