Next attack by the Bush campaign: my guess.
Kerry's testimony before Congress and his anti-Vietnam war activities will take center stage. There are MANY embarassing things to see and read. I think that this topic may kill the Kerry campaign completely. Bush is waiting for the last 4 weeks to unleash this final attack.
In addition, Kerry's record in Congress will be displayed in gory detail.
Yes, I know that these have been mentioned before. But I expect a massive barrage of Kerry's embarrassing past.