NYT:

Wisconsin voters will face a choice between protecting their health and exercising their civic duty on Tuesday after state Republican leaders, backed up by a conservative majority on the state’s Supreme Court, rebuffed the Democratic governor’s attempt to postpone in-person voting in their presidential primary and local elections. The political and legal skirmishing throughout Monday was only the first round of an expected national fight over voting rights in the year of Covid-19.

The Republicans’ success came at the end of a day that left anxious voters whipsawed between competing claims from the governor, Tony Evers, and his opponents in the G.O.P.-controlled State Legislature over whether Tuesday’s election would proceed as planned. It rattled democracy in a key battleground state already shaken by a fast-growing number of cases of the coronavirus.

The governor had issued an executive order postponing in-person voting and extending to June the deadline for absentee ballots. But Republican leaders succeeded in getting the state’s top court to stay the decree.

And in a decision late Monday capping the election-eve chaos, the U.S. Supreme Court’s conservative-leaning majority dealt its own blow to Wisconsin Democrats. In a 5-4 vote, the majority ruled against their attempt to extend the deadline for absentee voting in Tuesday’s elections, saying such a change “fundamentally alters the nature of the election.” The court’s four liberal members dissented, with Justice Ruth Bader Ginsburg writing that “the court’s order, I fear, will result in massive disenfranchisement.”

On the surface, it was exceedingly high drama for what amounts to a seemingly foreordained Democratic primary vote between the likely nominee, former Vice President Joseph R. Biden Jr., and Senator Bernie Sanders, who trailed substantially in a recent Wisconsin poll; a host of local contests; and a general election for a seat on the State Supreme Court now held by a conservative.

But what happens in Wisconsin has far broader implications for both parties.

The state stands as a first test case in what both national parties expect to be a protracted fight over changing voter rules to contend with the pandemic — potentially the biggest voting rights battle since the passage of the Voting Rights Act of 1965. Mr. Evers was trying to push Wisconsin still further toward voting by mail.