When the states sued, Trump had only directed the USPS to develop new rules for mailed ballots. The Postal Service finalized a rule requiring election offices to use approved, trackable envelopes for federal ballots and submit ballot-mailing information through a federal portal, but a separate federal court injunction currently prevents USPS from implementing those changes for the 2026 election.
The Trump administration is seeking to have that order lifted, and additional litigation is expected.
What Could Change In CA
If Trump’s rule is allowed to take effect, state and local election offices would have to comply with the new envelope, barcode and reporting requirements. Voters would not have to sign up with USPS, and the Postal Service would not decide who is eligible to vote.
The reporting requirement is likely to draw particular scrutiny because the Trump administration is already collecting statewide voter-registration data through a separate Justice Department effort. The states that have fully complied so far are Republican-led. Iowa, for example, turned over its voter file in May, including sensitive identifying information.
The USPS rule would require a different disclosure: information identifying voters being sent mail ballots and the barcodes associated with those ballots.