Wisconsin's attorney general is telling the U.S. Department of Justice to back off its demand for the state's most sensitive voter data, arguing that federal officials are overreaching and threatening voter privacy.
Attorney General Josh Kaul has asked a federal judge to toss a DOJ lawsuit that seeks Wisconsin's full, unredacted voter file, including Social Security numbers, driver’s license numbers and dates of birth for every registered voter. In court papers, his office casts the federal case as procedurally improper and at odds with state privacy protections.
The DOJ filed its motion in federal court earlier this month, asking a judge to force the Wisconsin Elections Commission to turn over the complete records after first requesting the information in June 2025, as reported by Urban Milwaukee. That motion is one piece of a wider federal push to secure unredacted voter files from states across the country.
The Wisconsin Elections Commission has told the DOJ that state law expressly bars releasing many of the fields the department wants, and commissioners voted to respond by offering only non-confidential data and disclosing DOJ's proposed memorandum of understanding, according to the Wisconsin Law Journal. The commission has also noted that certain public fields can already be purchased through its Badger Voters portal, rather than handing over the entire unredacted file in one federal handoff.
The Wisconsin fight is part of a broader national litigation campaign. The ACLU reports that the Justice Department has filed actions seeking full voter files from more than 20 states and the District of Columbia. In a closely watched setback for DOJ, a federal judge in California dismissed a similar case, with U.S. District Judge David O. Carter warning that the lawsuit "imperils all Americans" in explaining his ruling. The national case tally is outlined by the ACLU, while the California decision is detailed in a court analysis from the Elias Law Group.
Inside DOJ, trial attorney Brittany Bennett is leading the Wisconsin push. Bennett previously represented Republican plaintiffs in Georgia election disputes and filed the motion on behalf of the department. Senior DOJ civil rights officials have publicly suggested the effort could pave the way for large-scale removals from state voter rolls, according to reporting by the Atlanta Journal-Constitution. That mix of aggressive federal demands and talk of potential mass roll challenges has alarmed voting-rights advocates and local organizers.
What Kaul And The State Argue
Kaul's office, through Assistant Attorney General Samuel T. Packard-Ward, is asking the court to throw out the DOJ lawsuit on procedural grounds and to uphold Wisconsin's voter privacy rules, according to Urban Milwaukee. The state points to its longstanding voter list maintenance system and argues that Wisconsin's own processes, not a federal sweep of data, control how registrations are updated, corrected or removed.
In other words, Kaul is telling the court that federal officials are trying to muscle into territory that Wisconsin law already covers, and that opening up the full file would punch holes in state-level privacy protections that have been in place for years.
Who Is Worried And Why
Attorneys and advocacy groups representing Latinos, retirees and voting-rights organizations have either moved to intervene or weighed in from the sidelines, arguing the DOJ demand looks like an attempt to build a national database that could be used to challenge voter eligibility and purge registrations.
Commission records and public reporting show that DOJ proposed a memorandum of understanding that would, if approved, give federal officials access to sensitive voter fields and a role in flagging voters for removal. That prospect is at the center of local concern. See the Wisconsin Examiner for the commission's letter and the proposed MOU details.
Legal Implications
If the federal court sides with DOJ, the ruling could weaken state privacy safeguards and set a precedent that gives the department wider access to state-run voter databases nationwide. A win for Wisconsin, on the other hand, would bolster state authority to keep sensitive data under tighter lock and key.
Federal courts elsewhere have already signaled skepticism in some of these cases. The California dismissal, for example, flagged separation-of-powers and privacy concerns as central to the dispute. For a breakdown of that ruling, see the Elias Law Group, and for the broader national context, see the ACLU.
The motions in the Wisconsin case are now pending, and the next round of briefs and hearings will determine whether the state can block DOJ's bid or whether the federal government can secure the voter records it is after. For Wisconsin residents, the outcome will shape who controls access to their detailed voter information and how any future challenges to the state rolls are carried out.
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