Study points to potential vulnerability in online voter registration systems | Harvard Gazette

“If you look at the outcome of the 2016 election … there were several states where the margin of victory was within 1 or 2 or 5 percent,” she continued. “If you want to change the result in a state that was determined by less than 1 percent of the votes, what is the smallest number of changes you can make, and where do you make them?”
https://news.harvard.edu/gazette/story/2017/09/study-points-to-potential-vulnerability-in-online-voter-registration-systems/