I'm sure this'll sound like sour grapes or something coming from a (still) diehard Deaniac, but if this intern story ends up having legs, as I think it might if Kerry is "responding" so quickly, I think Kerry losing the nomination as a result would be just desserts, even if it went to Edwards instead of Dean.
After the push polling, the 4am phone calls, the "Kerry caucuses" in Iowa, etc.. I have one word for John F-ing Kerry: KARMA