The U.S. Department of Justice sued Washington Secretary of State Steve Hobbs on Tuesday over his refusal to turn over a trove of personal information about every registered voter in the state.

Assistant Attorney General Harmeet Dhillon in September requested a copy of Washington’s complete voter database, including full names, birth dates and partial Social Security or driver’s license numbers.

Hobbs refused in a Sept. 23 letter to DOJ, citing state law that shields personal information such as driver’s license numbers and full dates of birth from public disclosure. He directed his office instead to supply only information that is publicly disclosable, including birth years, addresses, names and voting history.

The DOJ lawsuit, filed in the U.S. District Court for Western Washington, a

See Full Page