United States v. Griswold
What's at Stake
Representing Common Cause and two Colorado voters, the ACLU Voting Rights Project and ACLU of Colorado have filed a motion to intervene in a federal lawsuit over the federal government’s demand that Colorado turn over its entire voter registration rolls, including voters’ sensitive personal data such as drivers’ license numbers and partial social security numbers.
Summary
The ACLU and ACLU of Colorado have filed a motion to intervene as Defendants in a suit brought by the Department of Justice against the Colorado Secretary of State, who refused to turn over voter file information except as required by law. The motion to intervene was filed on behalf of Common Cause and two eligible, registered Colorado voters—a voter who is a naturalized citizen and a voter with a past felony conviction. Such individuals are at particular risk of being targeted through aggressive voter purges that could mistakenly remove eligible voters from voter rolls. Concerns over such voter purges and unsubstantiated mass voter challenges and misuse of sensitive personal information have heightened the concerns of civil rights groups like Common Cause.
If intervention is granted, the civil rights group and the individual voters will seek to prevent the federal government from forcing Colorado to turn over the entirety of its voter registration database and to protect sensitive data within the voter rolls.
Legal Documents
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12/19/2025
Motion of Common Cause, Kyle Giddings, and Anna Keke to Intervene as Defendants
Date Filed: 12/19/2025
Court: District Court (D. Colo.)
Affiliate: Colorado
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