The United States has historically favored centralized voting methods. Over time, punch cards and lever machines gave way to electronic voting machines and optically scanned ballots, which were used prolifically in the 2012 election.
Both of these systems are vulnerable, and depend on a trusted central auditing authority to count the votes. Even in the United States, one of the most successful democracies in the history of the world, there have been numerous cases of potential voter fraud, murky ballot handling, flawed registration processes, and vulnerable technology.
http://bravenewcoin.com/news/the-parallel-2016-us-presidential-election
