Leah Litman for The Atlantic:

The Court did little to explain its decision. It first maintained that the residents never requested the extension (though the dissent referenced a portion of the case transcript in which they did). The Court then cited a prior decision, Purcell v. Gonzalez, that reasoned that courts should be reticent to disturb election procedures close to the date of an election. But that principle is based on the idea that elections should not be riddled with last-minute chaos. It is hardly applicable to the circumstances that the country is facing now—namely, an election that is already riddled with the sweeping, last-minute chaos resulting from the coronavirus.