If it does exist, now would be the time for Obama followers to bring it out. Would give the Obama camp months to either excuse it (by whatever wordsmithing it would take), or bury it in some McCain scandal.
The republicans might be holding back some of Berry’s campaign ending skeletons. They will keep Berry in the race and then drop the bomb on him sometime in September.That would give his replacement only a short period of time to get up and running. It could happen.