Will the courts finally settle the issue of Pa.’s disputed dating rule for mail ballots? And Pennsylvania’s mail ballot dating requirement could very well be the most litigated of all. The U.S. Supreme Court has declined to take up the issue in one case, while invalidating rulings in another. At the state Supreme Court hearing, Gore suggested the 3rd Circuit’s ruling could ultimately be appealed to the U.S. Supreme Court. And if the state Supreme Court rules for the ACLU, Republicans could, in theory, appeal that to the U.S. Supreme Court, too, if they believe the state court overstepped.