The question in this case was never whether barcodes are a good idea. It was whether Congress ever gave a mail agency the power to decide which ballots it will carry.
Here is the question worth asking about the Postal Service's ballot mail rule. Can the agency that delivers your mail refuse to carry your ballot because your name never made it into a Postal Service database?
On Sunday, a federal judge in Washington blocked the Postal Service's new ballot mail rule, finding it likely that no statute gave the agency power to issue key parts of it.
U.S. District Judge Carl J. Nichols ordered that the Postal Service "is preliminarily enjoined from implementing and enforcing the Final Rule it published on August 21." The ruling is a preliminary injunction, and the finding under it is a likelihood: the plaintiffs are "likely to succeed" on their claim, the opinion says. Nobody has won the case yet. What the court did decide is worth reading slowly, because it answers the kitchen-table question in plain terms.
The Receipt: one order, one opinion, one claim
The order was entered September 13, 2026 in three consolidated cases led by DSCC v. Trump, No. 26-cv-01114 (D.D.C.). The other two are League of United Latin American Citizens v. Executive Office of the President, No. 26-cv-01132, and National Association for the Advancement of Colored People v. Trump, No. 26-cv-01151.
It grants the renewed injunction motions of the LULAC and NAACP plaintiffs and grants the DSCC plaintiffs' motion in part. The part he denied asked him to enjoin Section 3 of the President's executive order itself. The opinion's footnote 6 gives the reason: those plaintiffs had not shown they likely had standing to challenge the order when they sued, or that their present injuries come from the order rather than the rule. So the rule is blocked. Section 3 of the executive order is not.
Nichols reached one claim and stopped there: that issuing the rule was ultra vires, outside the authority Congress granted. The plaintiffs raised other claims against the rule. The opinion does not decide them, in either direction.
What the rule would have done between your election office and your mailbox
It came out of Executive Order 14,399, issued March 31, 2026, which directed the Postal Service to initiate a proposed rulemaking. The Postal Service proposed the rule June 2, received more than 200,000 comments, and the whole rule took effect August 21, 2026, "a little more than two months before the upcoming federal election, and a couple of weeks before some states would start mailing their first ballots to absentee voters," in the opinion's words.
In the opinion's words, the rule requires that federal absentee and mail-in ballots "be transmitted only in envelopes satisfying new design requirements" and go only to voters the Postal Service has verified as enrolled in a new "Federal Ballot Mail Portal."
To enroll a voter, election officials, or someone they authorize to mail ballots, must submit to that portal the voter's name and address, the unique barcode on the voter's outbound and return ballot envelopes, and the state of the voter's original election office. The Postal Service then has to verify each outbound ballot envelope when it is presented for mailing, at a business-mail acceptance facility or a retail counter. A piece that cannot be verified "will not be accepted" and is returned to whoever presented it, which the rule calls the Authorized Ballot Mailer. The rule does not require that verification for return ballot mail, the envelope you send back.
So here is the answer to the question on top of this piece. The refusal gate in this rule sat on the way out, between your election office and you. If your record was not in the portal, or your envelope did not pass, your ballot was not supposed to be accepted for mailing.
The opinion cites a declaration "stating that North Carolina would start mailing ballots on September 4, 2026".
Why it costs you
Somebody pays for a rule like this before a single ballot moves. The opinion describes one election official who says her jurisdiction already bought its envelopes and must now spend over $10,000 replacing them, and a declaration that Travis County, Texas bought envelopes that do not comply, months ago, for $21,349.
And then the voter pays. On harm, he found the plaintiffs had shown "an increased risk that a significant number of otherwise appropriate absentee or mail-in ballots will ultimately not be counted in the upcoming elections."
On the other side of the ledger, he wrote, the government "does not point to any record evidence that there will be significant fraud in the upcoming elections" if relief is entered. The opinion calls that "perhaps not surprising," because the government casts the rule as a "regulation of the U.S. mail, and a modest one at that."
How the machine works: a mail agency's powers are about mail
On page 15, the opinion quotes three grants from the Postal Reorganization Act. It quotes the power "to provide for the collection, handling, transportation, delivery, forwarding, returning, and holding of mail, and for the disposition of undeliverable mail." It quotes the grant of "all other powers incidental, necessary, or appropriate to the carrying on of its functions or the exercise of its specific powers." And it quotes the authority "to adopt, amend and repeal such rules and regulations, not inconsistent with this title, as may be necessary in the execution of its functions under this title and such other functions" assigned to it by law.
The Act grants specific powers, he wrote, "all of which relate to the processing and delivery of mail," and the government had not shown how creating voter participation lists, or refusing to mail envelopes not registered on them, is necessary or incidental to those powers.
Here is the holding in the court's own sentence, from page 16:
"Nothing in the Postal Reorganization Act authorizes the Postal Service to impose new election procedures on state election officials, to create a data collection system for mail-in and absentee voters, or to refuse the transmission of lawful mail because it fails to meet these data collection requirements."
The opinion records that the government conceded the Postal Service could issue the rule only if Congress gave it that authority. So on this claim, the court asked whether Congress did. It also settled a dispute over how closely to look: the defendants argued the plaintiffs had to point to a statute that expressly bars what the rule does, and the court said that position "misstates the standard, at least in this Circuit."
Footnote 8 draws a contrast with other federal election laws. It describes the Help America Vote Act as directing States to maintain a statewide voter-registration list, and concludes that Congress "knows how to make an express delegation of authority to collect and maintain voter-specific election information when it wants to, and it chose not to do so here".
The defendants argued that the rule "regulates only the process by which the States design, label, and send [ballot] envelopes through the U.S. mail". The court's answer, on page 17: "the Rule does far more than prescribe how ballot envelopes must be designed and processed." The government compared it to Postal Service rules for mailing cremated remains and replica explosives. Those rules, the court wrote, "concern how particular items are packaged, shipped, and tracked while moving through the postal system."
His reading is that the Postal Service's powers are about moving mail, not running elections.
The strongest version of the other side
Here is the defendants' side as the opinion records it, including where the court gave it some credit.
First, the envelopes. The defendants argued the rule falls within the Postal Service's "general rulemaking power." On the envelope rules alone, the court did not rule that out. In footnote 7 the court writes, "It is less clear that the Rule's envelope design requirements, without more, exceed the Postal Service's rulemaking authority." And: "The fact that design requirements apply specifically to election mail does not, alone, make it ultra vires." The court's line runs through the portal and the refusal, not through the barcode on the envelope.
Second, the rule's purposes. The government pointed to the purposes stated in the rule's preamble, and the court agreed that the defendants and the public have an interest in "strengthening public confidence in mail voting" and "enhancing the efficiency of postal operations." It found no indication in the record that an injunction would harm those interests.
Third, the government offered a smaller remedy. The government's fallback was to enjoin only DMM § 705.24.5.3, the provision that stops the Postal Service from accepting noncompliant outbound ballot mail. That would have left the envelope redesigns, the design reviews and the portal buildout running on the eve of an election, and the court said the narrower order would not fix those delays and would likely create "even more confusion and misunderstanding." Nichols refused, finding the rest of the rule would not "function sensibly" without it. On page 24 he added: "It seems highly unlikely that the Postal Service would have adopted the Rule's design and Portal requirements if it could not require that Outbound Federal Ballot Mail comply with them." So the injunction covers the rule in its entirety.
At the Supreme Court: two different cases, not this one
Neither of these applications comes from Sunday's ruling. They are separate cases.
The Postal Service's own request to stay a Massachusetts injunction waits at the Supreme Court. That application is 26A305, United States Postal Service v. California, docketed September 6, 2026 from the First Circuit. The Solicitor General "now seeks a stay of the preliminary injunction entered by the United States District Court for the District of Massachusetts on September 4, 2026," according to a September 6 order from Justice Jackson. As of this desk's read of the 26A305 docket at 7:05 a.m. Eastern on September 14, the docket holds 27 entries, the newest dated September 10, and no order on the application.
The second is 26A308, Department of Homeland Security v. League of Women Voters, docketed September 8, 2026 from the D.C. Circuit, five days before Nichols ruled. Its docket still carries three entries, and the response the Chief Justice requested is due "by 4 p.m. (EDT), on September 15, 2026." September 15 is a Tuesday. This piece does not describe what that case is about; its filings were not read here.
What you can actually do
Ask your election office one question. Has anything changed this year about how my mail ballot will be sent to me? The office that mails your ballot is the one that can answer it.
Request early and return early. The harm the court found runs on the calendar. Every day of margin you give yourself is a day a delay cannot take from you.
Read the opinion yourself. Pages 14 through 18 hold the ultra vires reasoning, and pages 22 through 24 hold the fight over a narrower injunction. It is 24 pages and free to open.
Watch the dockets, not the commentary. Both Supreme Court dockets update in public.
The So-What
Strip out the barcodes and here is what Sunday's opinion says. A mail agency may set rules for how mail is packaged and moved. On this record, it likely may not build a list of who votes by mail and then refuse to carry ballots for anyone missing from it, because Congress never gave it that job.
That is not a technicality. That is the question of who decides.
Come back for the rest
We do this every week: the official framing on top, the actual document underneath, every quotation traced to the page it came from. Pull up a chair, pour something cold, and let us send you the receipts when the Supreme Court moves. Subscribe to The Long Pour, the free newsletter.
If you want the rule itself read section by section, start with The Postal Service Built a Federal Ballot Portal, and Nobody Voted for Any of It.
Y'all come back, now.
The Receipts
Every document below was opened and read at the source. All sources accessed September 14, 2026.
- Memorandum Opinion, DSCC v. Trump (U.S. District Court for the District of Columbia, No. 26-cv-01114 (CJN), ECF 192, Judge Carl J. Nichols, September 13, 2026; accessed September 14, 2026): the rule's terms, the ultra vires holding, footnotes 6 to 8, harm, fraud record and scope.
- Order granting preliminary injunctions, DSCC v. Trump (U.S. District Court for the District of Columbia, No. 26-cv-01114 (CJN), ECF 193, September 13, 2026; accessed September 14, 2026): the injunction's words, the motions granted and the denied Section 3 request.
- Docket, United States Postal Service v. California, No. 26A305 (Supreme Court of the United States, docketed September 6, 2026; accessed September 14, 2026 at 7:05 a.m. Eastern): the caption, Justice Jackson's September 6 order and the docket's state at that read.
- Docket, Department of Homeland Security v. League of Women Voters, No. 26A308 (Supreme Court of the United States, docketed September 8, 2026; accessed September 14, 2026 at 7:05 a.m. Eastern): the caption, the three entries and the September 15 response deadline.