"We are fortunate that the Pennsylvania Supreme Court’s decision to change the receipt deadline for mail-in ballots does not appear to have changed the outcome in any federal election. This Court ordered the county boards to segregate ballots received later than the deadline set by the legisla- ture. Order in Republican Party of Pa. v. Boockvar, No. 20A84. And none of the parties contend that those bal- lots made an outcome-determinative difference in any rele- vant federal election."

Don't simp too hard for Thomas. This is buried in that dissent.