The Department of Homeland Security notified election officials in California, New Jersey, Nevada and Pennsylvania about a preliminary review that flagged what could be more than 256,000 noncitizens on voter registration rolls, and the department is asking states to help verify identities before any action is taken.
This week DHS Secretary Markwayne Mullin sent letters explaining that the department compared publicly available voter registration records with federal immigration data and uncovered thousands of potential matches. The move is framed as a fact-finding, not an automatic purge, and officials were asked to work with DHS to verify whether the matches represent eligible voters. The letters make clear DHS wants cooperation to ensure the integrity of future federal elections.
DHS estimates the potential totals at 190,832 in California, 35,152 in New Jersey, 15,903 in Nevada and 14,576 in Pennsylvania. Beyond those headline numbers, DHS identified a subset with detailed matches — including name, date of birth, address and Social Security numbers — that raised stronger flags. Those closer matches number into the tens of thousands across the four states, prompting the request for state follow-up.
It’s important to note many noncitizens have legally issued Social Security numbers, from lawful permanent residents to certain visa holders and people authorized to work. DHS used Social Security numbers as one of several identifiers when aligning voter registration records against federal immigration records. That helps explain why matches show up, but it also highlights why verification is necessary rather than immediate removal.
“The most efficient way to ensure the accuracy of our findings is to work collaboratively on identity verification,” Mullin wrote. The Secretary laid out that the federal government holds the immigration records needed to confirm citizenship, while states control the voter rolls. The letter asked state election officials to contact DHS by July 24 so the agency can begin sharing records and assisting with verification ahead of upcoming federal elections.
From a Republican standpoint, this is basic government partnership doing the job it should: using federal data to help states keep voter lists accurate and protect every lawful citizen’s ballot. Ensuring only U.S. citizens vote in federal elections is framed as protecting the value of a citizen’s vote, and the administration argues that even a single noncitizen casting a ballot can cancel out a citizen’s voice. That blunt appeal to fairness is central to why the department pushed for a cooperative approach.
Officials in the named states had not immediately responded in the early reporting, and the letters arrived amid broader pressure for states to allow federal agencies access to records for election security. The Trump administration and allies have repeatedly pushed the idea that better federal-state data sharing can clean up voter rolls and reduce errors or fraud. This action by DHS is another step in that ongoing effort to pair federal immigration files with state registration lists.
Practically speaking, the process DHS proposes is verification, not automatic disenfranchisement. The department signaled willingness to provide records under federal law to help states determine eligibility, and it called for a collaborative identity check before any removal or other corrective action occurs. That procedural safeguard is meant to prevent false positives from leading to wrongful roll changes.
The political heat around voter rolls is not new, but the scale of the numbers DHS released gives the issue renewed urgency. Republicans who prioritize election integrity will see the letters as a necessary nudge toward cooperation and transparency. The coming weeks will show whether the named states engage with DHS, how many of the preliminary matches hold up under scrutiny, and what steps follow once verification is complete.
