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In a quest to bolster a long-running claim from President Trump concerning undocumented immigrants illegally voting, the Justice Department is seeking detailed voter roll data from over 30 states.
Sept. 9, 2025, 5:02 a.m. ET
The Justice Department is compiling the largest set of national voter roll data it has ever collected, buttressing an effort by President Trump and his supporters to try to prove long-running, unsubstantiated claims that droves of undocumented immigrants have voted illegally, according to people familiar with the matter.
The effort to essentially establish a national voting database, involving more than 30 states, has elicited serious concerns among voting rights experts because it is led by allies of the president, who as recently as this January refused to acknowledge Joseph R. Biden Jr. fairly won the 2020 election. It has also raised worries that those same officials could use the data to revive lies of a stolen election, or try to discredit future election results.
The initiative has proceeded along two tracks, one at the Justice Department’s civil rights division and another at its criminal division, seeking data about individual voters across the country, including names and addresses, in a move that experts say may violate the law. It is a significant break from decades of practice by Republican and Democratic administrations, which believed that doing so was federal overreach and ripe for abuse.
“Nobody has ever done anything like this,” said Justin Levitt, an election law expert at Loyola Marymount University’s law school and a former Justice Department official.
The Justice Department has requested data from at least 16 Republican-controlled states, including Mississippi, Alabama and Texas. It has also sent more formal demands for data to at least 17 mostly Democrat-controlled or swing states, including Pennsylvania, Nevada, Wisconsin and New York.
Nearly every state has resisted turning over voter files with private, personally identifiable information on voters like driver’s license numbers or Social Security numbers. Last week, a local judge blocked South Carolina from releasing private voter information to the Justice Department.
