I expect a total lie to be dropped on the public in a couple of weeks. An unnamed source will be quoted about some off the wall accusation of something Romney did while in France. It will be absurd, totally indefensible and totally untrue. But Romney will have to address it and it will probably cost him votes, i.e. the drunk driving report on W in 2000.
I am expecting Biden to dress up as Big Bird and campaign for the kindergarten vote!