The Department of Homeland Security has formally notified election officials in New Jersey and three other states that a preliminary data review identified thousands of individuals it describes as potential noncitizens currently listed on state voter registration rolls. The notification, sent July 17, 2026, adds a specific layer of detail to an ongoing national conversation about voter roll accuracy that has already drawn significant political attention this month.
DHS Secretary Markwayne Mullin sent the letters directly to the secretaries of state overseeing elections in New Jersey, California, Nevada, and Pennsylvania. According to the department, the review compared publicly available voter registration records against federal immigration data, producing an estimate that as many as 35,152 potential noncitizens may currently be registered to vote in New Jersey specifically. Across all four states combined, DHS placed the total estimate at more than 256,000 individuals. Within New Jersey’s figures, the department reported a more specific data point as well, stating that 19,497 New Jersey registrants had names, dates of birth, addresses, and Social Security numbers that produced a direct match against noncitizens listed in DHS immigration records.
As part of the notification, Secretary Mullin asked state election officials to collaborate directly with federal authorities to verify these identities and review the flagged voter rolls accordingly, framing the request as a cooperative step toward confirming the accuracy of the department’s preliminary findings.
It’s important to note several significant limitations in what has been publicly disclosed about this process so far. Reporting on the letters and the department’s initial public materials indicates that DHS has not specified whether any of the individuals flagged in its review actually cast a ballot in a past election, a meaningfully different question from simply appearing on a registration list. The department’s public materials also have not provided full detail on the exact methodology used to produce these matches, leaving open real questions about how DHS cross-referenced voter registration data against immigration records and what margin of error that matching process might carry. Given that data matching across large government databases can produce false positives due to shared names, data entry errors, or outdated records, the absence of detailed methodology makes it difficult for outside observers to independently assess how reliable these specific numbers actually are at this stage.
For New Jersey residents looking for accurate, up to date information on this process, or who want to verify their own voter registration status directly, the New Jersey Division of Elections maintains an official portal where residents can check their registration details. Announcements and further updates regarding the broader federal review can also be found directly through the U.S. Department of Homeland Security’s own official channels.
As this story continues developing, the core tension driving it remains unresolved. DHS has presented specific, sizable figures suggesting a meaningful number of noncitizens may be registered in New Jersey and the other named states, while the department has yet to publicly clarify whether any of those individuals actually voted or to detail the methodology behind its matching process. That gap between the scale of the numbers being cited and the level of methodological transparency provided so far is likely to remain a central point of scrutiny as New Jersey election officials respond to the department’s request and as the broader national debate over voter roll accuracy continues playing out ahead of the November general election.
