Nevada election officials say the 185 voter records flagged by the federal government as possible noncitizens appear to belong to U.S. citizens, leaving state and federal agencies at odds less than six weeks before the Nov. 3 election.

Deputy Attorney General Greg Ott told the Department of Homeland Security that Nevada’s records showed the people were citizens and that federal officials had provided no substantive evidence otherwise, according to a Wednesday letter obtained through a public-records request. Secretary of State Cisco Aguilar cautioned that limited federal data means the two governments may not even be examining the same individuals.

The dispute turns on the quality of the identifiers DHS supplied. Nevada received “voter case numbers,” but not names, birth dates or addresses that would allow a definitive match. A KTNV report said the spreadsheet also indicated citizenship status and whether a record had been confirmed, while omitting the personal details the state requested.

Those case numbers are not necessarily unique across Nevada’s legacy county databases. The state recently replaced its county-led structure with a centralized Voter Registration and Election Management Solution. The secretary of state’s project page says the system created one statewide registration database, but older Clark County numbers were replaced during the transition. Election officials say that history can produce duplicate identifiers across counties and makes a number-only comparison unreliable.

The federal estimate has also narrowed sharply. DHS initially alleged that as many as 15,903 Nevada registrants matched noncitizens in federal files. A later review reduced the confirmed pool under discussion to 185, while federal officials said thousands of additional records were still being examined. The evolution from the initial claim to the revised figure is central to the state’s demand for record-level proof.

DHS maintains that its 185 matches underwent a rigorous manual review and says another 6,218 records remain under examination. The department has not publicly explained why it withheld the names, addresses and birth dates Nevada says it needs. State officials, meanwhile, say their review of registration records, including the identification submitted with each application, found no evidence that the flagged people were noncitizens.

No voter was identified publicly, and Nevada has not announced removals based on the federal list. Aguilar said ordinary list maintenance may remove ineligible records, but the state has not conducted a targeted purge of noncitizens. That distinction matters because a database lead is the start of an investigation, not by itself a finding of ineligibility.

The practical stakes are immediate. Nevada says it must investigate credible evidence of illegal registration while avoiding the wrongful cancellation of eligible voters. Without common identifiers, neither side’s assertion fully resolves the case. The next meaningful step would be a data exchange precise enough for state officials to verify each person without relying on ambiguous legacy numbers.