Can't see how SCOTUS weasels out of this. States run elections, states get to make the rules. End. Proponents of the ban are saying counting late ballots violate federal law. What federal law? Couldn't find anything scanning these articles.
In any case, how does federal law supercede state election laws? State control of elections is in the fucking Constitution.
Section 4 Congress
Clause 1 Elections Clause
The Times, Places and Manner of holding Elections for Senators and Representatives, shall be prescribed in each State by the Legislature thereof; but the Congress may at any time by Law make or alter such Regulations, except as to the Places of chusing Senators.