Get the Whitepaper called Attacking the Washington, D.C. Internet Voting System. In 2010, Washington, D.C. developed an Internet voting pilot project that was intended to allow overseas absentee voters to cast their ballots using a website. The authors of this paper participated in a challenge to break the security of the system and in doing so, elected Bender from Futurama to the school board.
You can download it from the following link: https://packetstormsecurity.com/files/download/110418/dcvoting-fc12.pdf
Source: https://packetstormsecurity.com/files/110418/Attacking-The-Washington-D.C.-Internet-Voting-System.html