The Post Office Is Not a Registrar

The Supreme Court on Monday refused to let a new Postal Service rule on mail ballots take effect for this year's midterm elections.

The rule followed an executive order in March. It would have required states to send the Postal Service lists of the voters they were mailing ballots to, through a federal portal that is not yet operating, and to use newly approved envelopes carrying unique barcodes. The Postal Service could have refused to deliver ballots that did not comply or were not tied to a registered voter on a state's list.

Twenty-three states led by Democrats, along with voting rights groups, sued. Judge Indira Talwani blocked the rule in June. On Monday the Supreme Court declined to lift that block, saying the government was unlikely to succeed on the merits. Justices Samuel Alito and Clarence Thomas dissented.

Justice Brett Kavanaugh wrote separately that the rule might be lawful, but that state election officials did not have enough time to implement it before November.

That concurrence is the part most likely to be quoted, because it leaves the door open for 2028. It is also the least interesting part of the dispute.

The deeper question is not when a rule like this could apply. It is which part of government is allowed to decide who is a voter.

The Postal Service's general powers are those of a delivery organisation. It can set rates, adopt rules for handling mail and run its operations.

Its duty to provide service runs the other way from the rule: the agency is charged with serving everyone and not discriminating unreasonably among the people who use the mail.

Nothing in either provision makes the Postal Service a judge of voter eligibility.

The Elections Clause of the Constitution gives the power to set the times, places and manner of congressional elections to state legislatures, subject to laws passed by Congress. Registration, eligibility and ballot design all sit inside that allocation.

The rule attempted something none of those sources supports. It let a delivery agency refuse a ballot because it did not match a list, which is an eligibility judgment made at the mailbox by an agency that has no power to make it.

That is the point Judge Talwani's ruling reached, and it is why the Supreme Court's reference to the merits matters more than the timing argument.

The Postal Service's own election mail guidance describes a very different role. It tells election officials how to design envelopes that machines can sort, recommends the official election mail logo, and urges voters to mail ballots early. It advises. It does not decide.

The operational warnings were serious in their own right. Election officials said they had neither the time nor the money to redesign envelopes and submit lists through a portal that did not yet exist. A Postal Service whistleblower called the system "secretive, rushed, chaotic, and fundamentally flawed" and warned that millions of ballots could be rejected.

Those warnings would have been answered by time, which is what Kavanaugh's concurrence offers. The authority problem is not answered by time at all.

A registration list is a state record, maintained under state law and challengeable in state processes. When a voter is wrongly left off it, the voter has a remedy against the state.

A ballot refused at a sorting facility because it did not match a federal portal has no equivalent remedy. The voter may never learn why it did not arrive, and the election official who sent it may learn only after the deadline has passed.

The separation between the agency that carries ballots and the governments that decide who may cast them is not an accident of administration. It keeps a single national agency from becoming a point at which eligibility can be decided invisibly.

The case will now continue on its merits. When it returns, the question worth watching is not whether states had enough notice. It is whether any federal agency, rather than Congress, can make itself part of deciding who votes.