“We do not believe the election was ‘stolen,’” WILL says. “But it was not adequately secure.” Some of its suggestions for restoring election confidence are basic: Process ballots earlier to stop midnight results in Milwaukee. Redesign mail ballots with “specific spots” for witnesses to jot their cities, states and ZIP Codes. Define “confined voter.”

The overall lesson is to run elections by the book. WILL says the number of ballots that “did not comply with existing legal requirements” almost surely “exceeded Joe Biden’s margin.” The ambiguity is deadly to public trust.

But Mr. Trump didn’t raise hell until he lost. Then his campaign asked to throw out more than 200,000 random ballots from two blue counties, even though questioned practices had taken place statewide. If an honest Wisconsinite followed some official procedure that wasn’t challenged, good luck getting judges after the fact to toss that vote—to say nothing of 28.4% of all the votes in Milwaukee County. Such selective treatment, as WILL says, is what the Supreme Court quashed in Bush v. Gore.