The U.S. Supreme Court on Tuesday invalidated a ruling by a lower court on a Pennsylvania case that involved the counting of undated mail-in ballots, the Philadelphia Inquirer reports.The Supreme Court ruled on a decision that the 3rd U.S. Circuit Court of Appeals made in May in a case involving the 2021 election of Judge Zachary Cohen, ordering the state to count 257 mail-in ballots that lacked a necessary date on the return envelope.The lower court ruled that the date requirement was "immaterial" and said there was no reason to exclude the ballots that had previously been set aside due...