Around half the votes cast in the 2020 election are expected to be mail-in ballots.
Concerns about the coronavirus pandemic are driving more people to vote early, absentee, or via the postal service. Professor Nate Persily with the Stanford Law School said this level will vary by state, since some have more experience with this system.
“We have never had to transform the American electoral infrastructure in such a significant way in such a short period of time," he said.
Persily made the remarks at a panel event by SciLine, a service that provides scientific information and experts to journalists. He says other election concerns include socially-distanced polling places and the cybersecurity of equipment.