For the 'Rats to select Kerry in their convention, then pull a switcheroo, wouldn't they want to do it before the big states printed ballots. Anyone know what sort of procedures states use to determine the Convention winners and learn whom to put on ballots. I'd imagine that there are state filing deadlines, and that representatives of registered parties in each state have to deliver the chosen names to some official of the state, by some deadline.
Once delivered, then it would take a corrupt state government, such as we had in New Jersey, to change who was running for electors in that state. I don't think the 'Rats have enough corrupt control of a majority of states to have any hope of pulling that off.
So this means they would have to pull the switcheroo pretty close to late August, early September, to beat the various state deadlines.
Still seems that such a move, unless done in a way that arroused the sympathies of the average non-political 'moderate' would cost them enough votes to doom their chances.
I don't think they can pull off a post convention switch. I think it has to happen before the convention, so that they can use the convention to get the party workers behind the chosen one. Also, before the convention, it's only the 'Rat party that has to be corrupt, not 50 states.