I’ve been writing since May about the importance of keeping schools open, and initially the debate wasn’t so politicized. But after Trump, trying to project normalcy, blustered in July about schools needing to open, Republicans backed him and too many Democrats instinctively lined up on the other side. Joe Biden echoed their extreme caution, as did many Democratic mayors and governors.

So Democrats helped preside over school closures that have devastated millions of families and damaged children’s futures. Cities such as Boston, Philadelphia, Baltimore and Washington, D.C., have closed schools while allowing restaurants to operate…

In both Europe and the United States, schools have not been linked to substantial transmission, and teachers and family members have not been shown to be at extra risk (this is more clear of elementary schools than of high schools). Meanwhile, the evidence has mounted of the human cost of school closures.