U.S. Postal Service Failed to Properly Handle Some Ballots During This Year’s Primary Elections, Audit Finds

ProPublica · collected 2026-09-10 · by Jen Fifield
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Summary

A new audit from the U.S. Postal Service's Office of Inspector General found that some USPS facilities failed to properly handle ballots during primary elections this year, citing lack of training for staff and errors in tracking ballots. The audit identified failures at multiple facilities, but noted that nearly 99% of ballots reached election officials on time. The findings come as the Supreme Court weighs whether to allow new rules regulating mail voting, which critics say could disenfranchise eligible voters by requiring USPS to use voter lists to determine ballot distribution. Election experts are citing the audit's findings in their opposition to the new rules, saying they underscore the need for improved understanding and enforcement of Postal Service policies among employees.
Written by the local model on 2026-09-10, using this article's own text rather than the other coverage of the same event (that is the story summary below).

Signals How these are calculated →

Claims extracted
29
claim-shaped sentences
Uncertain
17%
5 of 29 hedged
Leaning
Leans strongly left
of the writing, not the subject
Publisher trust
95.4
red-flag proxy, not a credibility rating
Outlets on this story
1
Politics
Narrative spread
1
articles carrying this framing
Analyzed 2026-09-10 · how these are computed

AI analysis (generated at analysis time, not now)

Story summary

The USPS's handling of mail ballots during the primary elections was found to be flawed by an audit from the agency's Office of Inspector General. The audit, dated September 4, discovered that some post office facilities lacked proper training for staff on how to handle mail ballots efficiently. This led to deficiencies in tracking ballots and errors causing delays, which could result in late or incorrect postmarks and potentially rejectable ballots. Despite these issues, the audit noted that nearly 99% of ballots reached election officials on time, but the mistakes still increased the risk of improper handling. The findings have raised concerns about the USPS's ability to meet the expected surge in mail ballots for the November election, which is currently under consideration by the U.S. Supreme Court. Chelsey Wininger, executive director of the Democratic Association of Secretaries of State, stated that the audit highlights the organization's struggles with implementing changes and reinforces its opposition to new rules close to an election. The American Postal Workers Union has also filed a brief with the Supreme Court arguing that imposing new rules would pose a significant risk to voters being able to cast their ballots by mail.

Written for “Voting Election Irregularities” on 2026-09-10, grounded in this article and the 0 other(s) covering the same event.
Why this leaning score
The article's own words the score was based on. Each is quoted verbatim and was checked against the article text before being stored, so you can find it in the original.
Score -0.65 Confidence high
Leaning score -0.65 for article 7616 (high confidence, 3 verified quotes) · logged 2026-09-10

Story

📰 Voting Election Irregularities
Politics · 1 article(s) covering the same event. This is the one the site leads with.

How this is being covered How these are calculated →

Article leaning vs. publisher reliability
Source leaning vs. consistency

Compared with similar articles

This article reads leans strongly left and hedges 17% of its claims. Each row says how that neighbour differs.
Al Jazeera
⚖️ Leans right further right than this 🔴 14% hedged 3 of 21 📰 publisher trust 96
“Article A describes a legal appeal to the Supreme Court about mail-in voting restrictions, while Article B reports on an audit finding failures in handling ballots during primary elections, which is a related but separate issue”
Fox News
⚖️ Leans right further right than this 🔴 12% hedged 2 of 16 📰 publisher trust 95
“Article A refers to a pending Supreme Court case about mail-in ballot restrictions, while Article B discusses a past audit of USPS handling of ballots during primary elections”
CBS News
⚖️ Leans right further right than this 🔴 11% hedged 2 of 19 📰 publisher trust 60
“Article A describes a court filing by the Trump administration about an injunction against postal service handling of ballots, while Article B reports on the results of a separate audit that found issues with how the USPS handled ballots during primary elections.”
A Mail Voting Fight About Nothing different event · 80%
The Dispatch
⚖️ leaning not scored 🔴 0% hedged 0 of 2 📰 publisher trust 96
“Article B discusses an audit finding from September 4 that failed ballot handling occurred during this year's primary elections, while Article A refers to ongoing litigation about implementing USPS' role in overseeing mail ballots”

Publisher

ProPublica · 36 article(s) · 0 correction(s) detected
No corrections detected for this publisher. That may mean careful reporting, or simply that nothing has been checked.

Who wrote this

Jen Fifield
2 article(s) here · 1 carrying a prediction
🔮 The audit, which is dated Sept. 4 but has not been previously reported, found a lack of training for post office staff on how to properly and expeditiously handle mail ballots, deficiencies in how ballots were tracked and errors leading to delays, all of which risked ballots having incorrect postmarks or otherwise arriving late to election officials, which could lead to their rejection.
🔮 Top U.S. Postal Service officials tasked with issuing new regulations on mail voting expressed concerns in internal meetings about how the rules they were drafting could delay or block ballots from reaching large swaths of eligible voters for the upcoming midterms, but the rules moved forward anyway, ProPublica has learned. The revelations about the discussions, from someone familiar with the rulemaking process, come as a separate anonymous federal employee filed a whistleblower disclosure with U.S. Sen. Richard Blumenthal, warning that the new system is untested and error-prone, and could lead to mass disenfranchisement in the upcoming election.
More on this subject from Jen Fifield

Topics

Postal Service ProPublica U.S. Postal Service USPS the Supreme Court

Subjects

USPS ORG · 4× the Supreme Court ORG · 4× Postal Service ORG · 3× the Postal Service ORG · 3× ProPublica ORG · 2× Election and Political Mail ORG · 1× Office of Inspector General ORG · 1× Postal Service’s ORG · 1× U.S. Postal Service ORG · 1× the U.S. Supreme Court ORG · 1×

Narrative

Postal workers, through the American Postal Workers Union, also said Wednesday in a brief filed with the Supreme Court that it is not practical to implement the rules, which pose a “significant risk of wide swaths of Americans not being able to vote by mail.” Even if the Supreme Court allows the new rule to move forward, some state election officials say the requirements would be impossible to meet for the November election, with mail ballots starting to go out this month. Chelsey Wininger, executive director of the Democratic Association of Secretaries of State, said the audit shows the Postal Service “struggles to implement even basic changes to postal process consistently” and reinforces the organization’s opposition to any new rules this close to an election.
framing: assertive · carried by 1 article(s) · first seen 2026-09-10
🔮 The audit, which is dated Sept. 4 but has not been previously reported, found a lack of training for post office staff on how to properly and expeditiously handle mail ballots, deficiencies in how ballots were tracked and errors leading to delays, all of which risked ballots having incorrect postmarks or otherwise arriving late to election officials, which could lead to their rejection.

Claims (29 extracted, 5 hedged)

Some U.S. Postal Service facilities failed to properly handle ballots during this year’s primary elections, according to a new audit from the agency’s Office of Inspector General. uncertain
facilities → fail → General
Election experts say the findings call into question the agency’s ability to meet even greater demands for the November election that are under consideration by the U.S. Supreme Court. asserted
that → say → Court
The audit, which is dated Sept. 4 but has not been previously reported, found a lack of training for post office staff on how to properly and expeditiously handle mail ballots, deficiencies in how ballots were tracked and errors leading to delays, all of which risked ballots having incorrect postmarks or otherwise arriving late to election officials, which could lead to their rejection. uncertain
which → date → rejection
The identified failures increase “the risk that Election and Political Mail is not handled, documented, monitored, and reported in accordance with Postal Service policy,” the audit said, though it noted that “most facilities we visited generally adhered to Postal Service’s election-related policies and procedures” and that nearly 99% of ballots reached election officials in a timely manner. asserted
% → identify → manner
“While instances of non-compliance were low relative to overall volume, the presence of similar procedural gaps across multiple facilities indicates a need for improved understanding and increased enforcement of Postal Service policies among its employees,” it said. asserted
it → indicate → employees
The findings come as the Supreme Court weighs whether to allow the Postal Service to move ahead with new rules that would allow the agency to regulate mail voting, under a March executive order signed by President Donald Trump. asserted
agency → come → Trump
The order requires states to give USPS a list of all voters eligible to receive a ballot in the mail and requires USPS to use those lists to determine which ballots get sent to voters. asserted
ballots → require → voters
Top Postal Service employees, along with a whistleblower who filed a disclosure with U.S. Sen. Richard Blumenthal, D-Conn., have expressed concern that the new system stands to disenfranchise large swaths of eligible voters, both by its design and lack of testing, ProPublica reported last week. asserted
ProPublica → file → testing
Election experts told ProPublica the new audit findings should be considered by the Supreme Court, as they make even clearer what election officials already know. asserted
officials → tell → what
David Becker, executive director of the Center for Election Innovation and Research and a former Justice Department civil rights lawyer, said the audit confirms that USPS has “a long way to go to meet its core obligations of delivering election mail in a timely manner.” asserted
USPS → say → manner
“The administration and USPS are simply incapable of successfully meeting vast and radical new responsibilities under the president’s executive order,” Becker said. asserted
Becker → meet → order
Postal workers, through the American Postal Workers Union, also said Wednesday in a brief filed with the Supreme Court that it is not practical to implement the rules, which pose a “significant risk of wide swaths of Americans not being able to vote by mail.” Even if the Supreme Court allows the new rule to move forward, some state election officials say the requirements would be impossible to meet for the November election, with mail ballots starting to go out this month. Chelsey Wininger, executive director of the Democratic Association of Secretaries of State, said the audit shows the Postal Service “struggles to implement even basic changes to postal process consistently” and reinforces the organization’s opposition to any new rules this close to an election. asserted
Service → say → election
In a response included with the findings of the audit, the Postal Service wrote that “while we acknowledge that we can always reinforce and amplify our internal processes and procedures (and will continue to do so between now and November) — overall ballot mail performance is strong.” asserted
performance → include → November
The agency acknowledged that there are some instances in which employees didn’t follow policies and procedures, but called other errors “isolated incidents,” such as when some New Jersey ballots were delivered to Tennessee before being sent back. asserted
ballots → acknowledge → Tennessee
The Postal Service agreed with all recommendations on how to protect against future problems, except for one that suggested promptly notifying customers impacted by new regional transportation plans. uncertain
that → agree → plans
The Postal Service did not immediately respond to a request for further comment Wednesday evening. asserted
Service → respond → comment
The Postal Service typically goes to great lengths to handle election mail in an expedited and careful manner. asserted
Service → go → manner
And overall, it delivered in this year’s primaries: Completed ballots from voters to election officials were processed “on time” nearly 99% of the time during the primaries, up from about 98% in 2024, for the about 6.3 million ballots that the Postal Service was able to track, according to the report. uncertain
Service → deliver → report
The definition of “on time” is not provided in the report. asserted
definition → provide → report
It refers to how quickly the ballot was handled by the Postal Service, not whether the ballot reached the election officials on time. asserted
ballot → refer → time
But when observing election mail at 14 processing facilities and 73 delivery units across eight states, the auditors found significant flaws in the handling of mail ballots. asserted
auditors → observe → ballots
In some locations, local management and employees weren’t familiar with requirements on how to process election mail, the report said. asserted
report → process → mail
In 14 states and Washington, D.C., election officials count ballots only when they are postmarked by the Postal Service by Election Day, making the correct postmark crucial for understanding which ballots to count and which to reject. asserted
postmark → count → which
But the audit found that in 10 of 82 facilities, or about 12%, management wasn’t aware of the proper way to postmark a ballot. asserted
management → find → ballot
Some thought ballots should be postmarked at that time they go out to election offices instead of earlier on when they reach a processing facility or retail counter. asserted
they → think → facility
Also, at five of nine mail processing facilities studied, retail clerks who were postmarking ballots by hand sometimes used stamps with inaccurate dates, according to the report. uncertain
who → process → report
That included a facility in Pennsylvania on the state’s primary election day, which caused 56 ballots to be postmarked with the wrong date. asserted
ballots → include → date
In 13 of 82 facilities, Postal Service workers didn’t complete proper procedures to make sure election mail had been sent out from the delivery units each day. asserted
mail → complete → units
In one instance at a Harrisburg, Pennsylvania, processing plant, 108 ballots were grouped with other mail and had to be expedited to Pittsburgh on the morning of the election so they would count. asserted
they → group → election
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