Noah Feldman: Mail-in voting is the only safe way to hold the 2020 election

People arrive at the Frank P. Zeidler Municipal Building to cast their ballots at the already closed drop-off site in Milwaukee, Wisconsin, on April 6, 2020. (KAMIL KRZACZYNSKI/AFP via Getty Images/TNS)

Mail-in voting is the best way to ensure that the November 2020 election can proceed safely despite the coronavirus pandemic. It’s all too likely we’ll still be dealing with outbreaks then, and it’s well before we’ll have a vaccine. The U.S. needs to start making plans for mail-in ballots now; and yet President Donald Trump has begun to make it clear he intends to stymie any large-scale vote-by-mail efforts.