This whole thing is so desperate. One has to wonder about the mental stability of some of these people.
The exit polls they cling to were heavily skewed towards women voters (largely democrat group), did not include the afternoon voters which are typically the family crowd (a largely republican group) and finally, the exit polls in 2000 were just as incorrect as these one's.
It's really quite bizarre to see such denial. Much like they're reasons to hate Bush, it all hinges on conspiracy theories. It's pathetic.
I think that you stated it best: Occam's Razor.