The US Department of Homeland Security has told election officials in California, New Jersey, Nevada and Pennsylvania that a preliminary review suggests more than 256,000 noncitizens may be registered to vote across the four states. The claim, made in letters obtained by Fox News Digital, feeds into the Trump administration's broader push on election integrity and is likely to intensify political debate over voter roll accuracy ahead of future elections, though it stops short of confirming actual voter fraud.

In four letters dated Friday, DHS Secretary Markwayne Mullin said the department had cross-referenced publicly available voter registration records against federal immigration data, identifying thousands of potential matches in each state. He asked state election officials to review and verify the findings, though the article does not detail what response, if any, the states have given or how the matches were methodologically determined.