No need to prove any allegation. It is only conjecture and rumor (which to any sane person has been proven false beyond any doubt) that have driven President Bush's current numbers down. If Kerry's "credibility" is questioned, he will lose what little advantage he holds presently. His entire "national" campaign to this point is based upon attacking the Presidents trustworthiness. For the dim-o-Rats it is ALL about electability. This story could remove that perception. Any momentum to this story at all will be a lose/lose situation for Kerry. I for one think that this scandal could not happen to a better candidate (Kerry), at a better time. This could totally deflate the dim-o-Rats as a party!!!
Slayer
One problem with your premise... While conjecture and rumor are hitting the President and his efforts, the complicit media refuses to air such conjecture and rumor when it is someone they support.
Just this morning, Katie Couric and Joe Lockhart were saying the President has no credibility because of his National Guard thing...even though totally unproven and now thoroughly debunked! yet, there was no discussion of Kerry's antics during Vietnam or his continued womanizing.
At least on ABC, George Stephanapolos got it right when he said the National Guard story is a non-story. That Bush dumped all documents and it all shows exactly what he said. George also pointed out this wouldn't be good enough for some Dems but Kerry was right to back off.
For the Dems, it's not at all about electability, it is all about power..and getting it by any means. Thus, this story only confirms how important POWER is in their eyes.
The only thing which will deflate the Dems as a party is the continued loss of power and control. We should all be praying for that.