The Supreme Court’s Pennsylvania Cleanup

For a few days last week, it looked as if the 2020 election might play out as a gloomy opera of recounts and lawsuits, possibly upstaging Florida in 2000. We can thank the fates for sparing us, since nobody else can claim credit. The task ahead, starting in the Supreme Court, is to prevent a similar shadow from falling next time.

Joe Biden’s lead in Pennsylvania has plodded upward to about 49,000 votes, at last check. That’s a modest margin of 0.73 percentage point, but it’s enough to avoid a recount cataclysm. The potential,…