The Department of Homeland Security (DHS) mistakenly identified 185 individuals on Nevada's voter rolls as non-citizens, according to state officials, who raised concerns about the government’s approach to identifying non-citizen voters ahead of the midterm elections. In July, former President Donald Trump claimed that DHS had found 278,000 non-citizens on the voter rolls in Nevada, California, Pennsylvania, and New Jersey. However, follow-up letters to these states suggested that the number could be as high as 278,000, including up to 15,903 in Nevada. In August, DHS officials told Nevada’s secretary of state’s office that they had reviewed the data and confirmed only 185 individuals were non-citizens. They also mentioned that they still needed to review more than 14,000 records. On Wednesday, Nevada election officials said they had examined the 185 records provided by DHS and confirmed that all individuals were U.S. citizens. Greg Ott, a deputy attorney general, wrote to DHS in an email obtained by the New York Times and Nevada Independent, stating that their records showed the individuals were citizens and that DHS had not provided enough evidence to the contrary. Ott also criticized DHS for not being transparent about the method used to flag non-citizens and for not sharing enough information. Nevada officials had asked DHS to provide first names, last names, addresses, and other data points that were used to identify the individuals, but the department only provided voter ID numbers. In Nevada, a voter registration number can be associated with multiple individuals, Ott explained. This is because each county previously used its own registration system, but Nevada recently transitioned to a single statewide system, giving voters new state voter identification numbers. As a result, the same number might appear in different voter records at different times. These numbers do not indicate whether a person was born in the U.S., became a citizen through naturalization, or has any specific immigration status. Election records often reflect only the information provided during registration, which may be incomplete or have changed over time. Earlier this month, the news outlet Votebeat reported that election officials in Pennsylvania also requested information from DHS regarding the basis for claiming there were as many as 14,576 non-citizens on its voter rolls. In an August letter obtained by Votebeat, Al Schmidt, Pennsylvania’s top election official, said DHS representatives had indicated they did not have "high confidence" in that number.