They'll have control of the news cycle for the next 48 hours, which is all they need to claim victory. Even if it turns out to be a cluster...k afterwards, the election will be over.
“Obama is going to “wag the dog” the first week of November, probably on Sunday after the morning talk shows are over.”
Depends upon how much traction the Libya coverup gets. If its a lot and it becomes an issue in the campaign, Nov would be too late, it would be just too obvious.