USPS publishes rule to block mail-in ballots from states that don't provide voter lists

The United States Postal Service (USPS) published a rule Friday that would require states to provide lists of voters who received mail-in ballots to the agency.

"Any state that intends to receive mail-in or absentee ballots from individual voters through the Postal Service must ensure that such individuals have been enrolled with the Postal Service for inclusion on the state's Mail-In and Absentee Participation List," the new rule states.

To be included on the list, an voter's state must submit to the USPS the individual's name and address and include a "uniquely serialized Intelligent Mail barcode (IMb)" on both the outbound federal ballot and the return ballot sent to the individual.

In July, siding with the plaintiffs in League of Women Voters of Massachusetts v. Trump, Talwani renewed the injunction, barring the USPS from enacting the rule.

In a filing opposing the renewal of the injunction, the Trump administration argued that the judicial review was premature under the ripeness doctrine, claiming that the plaintiffs cannot demonstrate any harm from the proposed law until it takes effect.

Fox News Digital contacted the White House, the DOJ, USPS and the U.S. District Court for Massachusetts for further comment.

Reuters and The Associated Press contributed to this report.