A federal judge ruled that the Trump administration's revamped citizenship database tool violates federal law and cannot be used to check voter rolls or purge voter registrations. Judge Sparkle Sooknanan found the system risked wrongfully removing eligible voters from registration, citing violations of laws protecting data disclosure and voting rights. This blocks a key Trump administration effort to identify and remove noncitizen voters from rolls — an initiative the administration had already used to run tens of millions of voters through the SAVE tool before the ruling. The ruling applies nationwide and forces a halt to the citizenship-checking program unless the administration appeals or redesigns the tool to comply with federal law.