> " Mr. Krawczyk said he believes Pandora's predictions are between 75% and 80% accurate"

This doesn't really seem noteworthy at all. I would be interested to know on a national level, percentage-wise what the average majority of each county votes.

I don't know how to word that better unfortunately, so here's an example: If we have three counties with equal population and one votes 81% republican, another 71% republican and the third 88% democrat, I would be able to determine your voting preferences by county alone with ~80% correctness. I know some states are swing states, but I think that a lot of those counties are still strong in one direction.

Anyone know where this data might exist just for kicks?