We better hope the Kerry people don't have an ace up their sleeve -- what I'm afraid of is they'll conjure up "proof" that Bush lied about his service in the National Guard. Opinion polling now indicates that the war is the most important issue on voters' minds and that 50% of the public thinks the war is a mistake. If the public decides Bush is not honest (as piles of Bush-bashing books are braying), Bush is toast.
This has been investigated and reinvestigated EVERY time Bush has run for ANYTHING for years now and there is no ACE to be found. Period.
Kerry's lying about his record is another story.