WASHINGTON — A whistleblower is warning that the U.S. Postal Service could potentially disrupt the 2026 midterm elections. This could happen if it moves forward with what the disclosure describes as an inadequately tested system designed to implement President Donald Trump’s restrictions on mail-in voting.
With mail voting for the midterms beginning this week, the USPS has been preparing an online portal that would allow state election officials to submit information about absentee voters and ballot-envelope barcodes. However, key elements of Trump’s plan remain blocked by a federal court. The legal battle continues.
Concerns Over Untested Technology
According to the whistleblower disclosure submitted by Democratic Sen. Richard Blumenthal of Connecticut, USPS leadership has accelerated development of the new system. This is despite concerns about testing and reliability.
The disclosure, prepared by Whistleblower Aid on behalf of an anonymous federal official familiar with the project, alleges that the Postal Service has abandoned standard development practices. It did this in an effort to have the system ready for a September 1 implementation.
The whistleblower warns that technical problems could prevent eligible voters from receiving their ballots on time. This could occur if courts ultimately allow the USPS plan to take effect.
A Zero-Failure Verification System
One of the most significant concerns involves the system USPS reportedly designed to verify whether ballots submitted by states comply with the new requirements.
The whistleblower describes a “zero-percent failure policy” under which ballots that do not pass verification could be repeatedly sent through the process.
According to the disclosure, this could result in thousands of ballots being delayed. It could also potentially prevent states from mailing large numbers of absentee ballots.
That creates particular concern because election officials operate under strict deadlines for distributing, returning and counting mail-in ballots.
Trump’s Mail-Voting Order Faces Legal Challenges
The USPS plan is part of a broader effort by the Trump administration to impose new restrictions on mail-in voting. Trump has argued that the measures are necessary to prevent illegal voting by noncitizens. However, research and election audits have found that noncitizen voting is extremely rare.
A federal judge in Boston recently issued a temporary restraining order blocking USPS from implementing key portions of the plan. The court found that the agency’s role in regulating mail voting was likely unlawful.
The Trump administration has appealed the decision to the 1st U.S. Circuit Court of Appeals, potentially setting up another dispute before the Supreme Court.
Election Officials Face Uncertainty
The timing of the dispute is particularly significant because absentee voting for the midterms is beginning as the courts continue to determine whether the administration’s policies can legally take effect.
Blumenthal has called on Postmaster General David Steiner to abandon the USPS plan. He argues that the Postal Service should not interfere with Americans’ ability to vote by mail.
The whistleblower’s allegations now add another dimension to the controversy. Even if the legal obstacles are resolved, questions remain about whether the technology intended to implement the policy is reliable enough to handle the enormous volume and tight deadlines of a national election.
With the 2026 midterms approaching, election officials and voters may therefore have to navigate not only a rapidly evolving legal battle. They will also face uncertainty over how the nation’s mail system will process absentee ballots.
