In late March, it became evident in the states holding Democratic primaries and other elections in April that, because of the coronavirus, it could be irresponsible to have voters cast ballots in person. Some states announced that they would postpone their elections, while Ohio (which had already done so) joined Alaska and Wyoming in moving to vote almost entirely by mail. Tony Evers, the Democratic governor of Wisconsin, sought to expand the use of mail-in ballots, but Republicans controlling the state legislature blocked him, arguing that the plan was unworkable, might foster fraud, and was, in any event, unnecessary. “You are incredibly safe to go out,” the Assembly speaker, Robin Vos, assured the electorate.
The standoff inspired lawsuits, and, on April 6th, the day before the vote, the U.S. Supreme…