I have been following this for a while and am in touch with a Stanford guy who is spearheading the propeller-head group working on it. I am NOT a conspiracy buff, but this stuff has me worried. Even last November, a couple of our Colorado congressional race results just made no sense. Polling may not be as accurate as in the past (some would say), but the outcome was outrageously outside the margin of error in our US Senate race.
Caveat: The site is not very user-friendly in design, but poking around will get you some fascinating reading.