A three-judge panel of the U.S. Court of Appeals for the 1st Circuit on Thursday declined to lift an injunction blocking the U.S. Postal Service from enforcing new mail-voting requirements before November’s congressional elections. The rule, adopted at President Donald Trump’s direction under a March executive order, requires states to provide USPS with lists of mail-ballot recipients and mandates unique barcodes on outbound and return ballot envelopes. USPS could refuse to deliver ballots that do not meet those standards or are linked to voters absent from state lists. The panel said the Constitution assigns election regulation to Congress and the states, not the executive branch, and found no error in U.S. District Judge Indira Talwani’s conclusion that the rule could disenfranchise millions while producing minimal gains against voter fraud. The Supreme Court, whose 6-3 conservative majority is reviewing the dispute, previously lifted an earlier injunction but has not ruled on the administration’s latest request. All 50 states permit some form of mail voting, while 29 allow no-excuse mail-ballot requests and eight conduct elections entirely by mail.