Trump slowed up the us mail system and the Supreme Court ruled any votes not received tomorrow won’t count?
Supreme Court ruled in one state that votes couldn’t be received after Election Day because that state’s laws did not allow it. Other state laws, such as Pennsylvania, do allow it.
The concern is that the SCOTUS will decide that those laws, allowing votes collected after Election Day, will be deemed unconstitutional. I think that is unlikely. Also, the number of votes received after Election Day are very low and a LOT of them are from overseas military.