I've seen some people suspicious of the fact that the Clinton campaign won six coin tosses in a row. Although I don't trust Clinton any farther than I can throw her, I don't think the results mean that that the tosses were rigged. Humans are terrible at recognizing random sequences. In fact, that's often how we can tell if an election is rigged.
http://phys.org/news/2012-09-statistical-method-fraudulent-voting-russian.html
http://phys.org/news/2012-09-statistical-method-fraudulent-voting-russian.html