ATLANTA — As the midterm congressional primaries heat up amid fears of Russian hacking, roughly 1 in 5 Americans will be casting ballots on machines that do not produce a paper record of their votes. That worries voting and cybersecurity experts, who say lack of a hard copy makes it difficult to double-check results for signs of manipulation.
Lack of paper trail a concern amid fears of election hacking
20 percent of voters use machines that provide no paper record
