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CNI

Justice Department sues for access to Illinois voter rolls

Illinois among at least 19 states being sued for voter data

Peter HancockbyPeter Hancock
December 18, 2025
in Elections
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The Paul Findley Federal Courthouse is pictured in Springfield. (Capitol News Illinois photo by Hannah Meisel)

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Article Summary

  • The Trump administration is seeking access to the state’s complete, unredacted voter registration database, including sensitive information such as voters’ dates of birth and partial Social Security numbers.
  • The Illinois State Board of Elections has so far declined to provide the information, citing state and federal privacy laws.
  • DOJ says it needs the information to determine whether Illinois is complying with federal requirements to maintain accurate voter rolls.

This summary was written by the reporters and editors who worked on this story.

SPRINGFIELD – The U.S. Department of Justice filed suit Thursday against the state of Illinois seeking access to its complete, unredacted voter registration database, including sensitive personal data such as dates of birth, driver’s license numbers and partial Social Security numbers.

The lawsuit, which was filed in U.S. District Court in Springfield, makes Illinois at least the 19th state to be sued for such information.

Read the lawsuit: USA v Matthews complaint (PDF)

The Justice Department has been seeking that information since July, but the Illinois State Board of Elections so far has declined to hand over the information, citing both state and federal privacy laws that it says prohibit it from handing over such information.

Instead, in August, the agency gave DOJ a copy of the same database it makes available under state law to political parties and candidates. That file includes voters’ names, addresses and their age at the time they registered, but not their date of birth, driver’s license, state ID or Social Security number.

Federal officials have said they want the information to determine whether Illinois is complying with federal requirements to keep its voter database updated and accurate, which includes scrubbing registrations of voters who have died or moved away from their listed address.

State officials, however, have responded that Illinois has a decentralized voter registration system in which local election authorities at the city and county level are responsible for maintaining their own voter databases.

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The lawsuit names State Board of Elections executive director Bernadette Matthews as the defendant.

A spokesman for the board said it has asked Attorney General Kwame Raoul’s office for representation in the case. The agency declined to offer any further comment.

 

Capitol News Illinois is a nonprofit, nonpartisan news service that distributes state government coverage to hundreds of news outlets statewide. It is funded primarily by the Illinois Press Foundation and the Robert R. McCormick Foundation. 

Tags: Illinois State Board of ElectionsSpringfieldU.S. Department of Justice (DOJ)voter registration
Peter Hancock

Peter Hancock

Peter was one of the founding reporters with Capitol News Illinois. He came to Springfield after many years working in Topeka, Kansas, where he covered the Kansas statehouse and other beats. He began his reporting career in 1989 at a small county weekly newspaper and has worked in a variety of settings including both daily and nondaily newspapers, online media and public radio. A native of the Kansas City area, he has degrees in political science and education from the University of Kansas.

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Justice Department sues for access to Illinois voter rolls

by Peter Hancock, Capitol News Illinois
December 18, 2025

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