What the Supreme Court's Mail Ballot Decision Means for November

The Supreme Court on Sept. 14, 2026, said no to a request in Postal Service v. California, No. 26A305. That leaves a block in place on parts of a U.S. Postal Service mail-in voting rule for the November 2026 election.

The order was short and unsigned, according to contemporary court coverage. The request to let the rule take effect during the lawsuits had gone to Justice Jackson. She sent it to the full Court Supreme Court. Justice Brett Kavanaugh wrote a one-paragraph concurrence, a short note saying he agreed with the result SCOTUSblog.

In that note, Kavanaugh said using the Postal Service rule in the 2026 midterm elections "would be arbitrary and capricious" CNBC. That is a legal term for acting without a good reason. His sentence is the only reason given by any justice.

The rule started with executive action. President Donald J. Trump issued Executive Order No. 14399. The order behind the USPS absentee and mail-in voting rules was issued in March Ballotpedia. The administration then asked courts for emergency help to let both the order and the Postal Service rule take effect.

The blocked Postal Service order would have let USPS refuse to deliver ballots if states did not share eligible voter lists Reuters. That put election offices and the Postal Service on opposite sides over sharing lists.

District order and appeal

U.S. District Court Judge Indira Talwani, who sits in Boston, issued a preliminary injunction against the executive order limiting mail voting. That is a temporary timeout before a final decision. A federal judge later extended that block on the plan to regulate mail ballots during the midterm elections AP.

A separate district ruling blocked the Postal Service from restricting mail-in voting. A federal judge again blocked the executive order seeking to limit mail voting in the midterm elections in late August.

Appeals courts did not change those orders before the Supreme Court acted. A three-judge appeals panel refused to lift Talwani's temporary block AP. A U.S. appeals court rejected the Trump administration's bid to carry out mail-in voting restrictions Reuters.

That Sept. 10 appeals decision is the controlling step before the Supreme Court action. An earlier July appeals ruling that the president cannot carry out the mail-in voting order is now background to the September panel action and the Supreme Court denial.

Calendar and election administration

For the November 2026 election, ballot mailing will begin on Sept. 30, 2026, according to filings in the case. Under Texas law, voters have until Oct. 23, 2026, 11 days before the election, to request a mail ballot.

The broader context here is timing. Allowing the request would have let part of the rule start while the lawsuits continued. Saying no keeps the lower court's temporary block in place while ballots move. Kavanaugh's words point to that problem of changing rules mid-cycle.

NPR, in an article published Sept. 18, 2026 at 4:44 AM ET and credited to Danielle Kurtzleben and A Martinez for Morning Edition, reported that Trump's agenda had run into rare institutional pushback that week on issues ranging from mail-in voting to the Federal Reserve. The piece, titled "Trump's week of setbacks: The president's priorities get rare pushback," is published at https://www.npr.org/2026/09/18/nx-s1-5973062/trumps-week-of-setbacks-the-presidents-priorities-get-rare-pushback.

Looking at what this means for the court cases, there is a difference between temporary help and a final ruling. No court in this sequence has issued a final judgment on the underlying executive order cited in the filings. The district court granted a temporary block. The appeals court declined to lift it. The Supreme Court declined to pause it in part.

In my view, that leaves two tracks for election lawyers to watch. The first is the full case on the executive order and the USPS rule after November. The second is any narrower request tied to a specific part rather than the rule as a whole. The Court's Sept. 14 action denied the request to carry out parts of the rule, not the entire case.

The record is now defined. Executive Order No. 14399 issued in March. Talwani blocked it on a temporary basis. The courts of appeals kept the block in place on Sept. 10. The Supreme Court kept it in place on Sept. 14. Ballot mailing begins Sept. 30.