A new federal audit has exposed serious failures in the U.S. Postal Service’s handling of election mail during the 2026 primary season, including incorrectly postmarked ballots, missing tracking information, delayed deliveries and ballots shipped hundreds of miles in the wrong direction.
ProPublica first reported the audit on September 9. The watchdog’s report is public: Processing of Election and Political Mail for the 2026 Primary Elections.
The September 4 audit by the U.S. Postal Service Office of Inspector General examined nine mail-processing facilities and 73 delivery units across eight states between March and May.
While auditors found that most facilities generally followed election-mail procedures, and overall processing scores improved from the 2024 primaries, they also uncovered alarming breakdowns that could determine whether a lawful vote is counted.
The report found that management at 10 of the 82 facilities reviewed was unfamiliar with proper ballot-postmarking policies.
At five of nine mail-processing facilities, auditors discovered hand-canceling devices displaying incorrect dates.
At the Harrisburg, Pennsylvania, processing center, a hand canceler being used on the May 19 primary election date was still set to March 19.