US District Judge Sparkle Sooknanan issued a 78-page ruling Friday siding with watchdog group Common Cause, finding the Justice Department unlawfully cross-referenced state voter rolls against the federal SAVE immigration database to identify voters it considered ineligible. The ruling is the latest judicial rebuke of the Trump administration's campaign to federalize election oversight ahead of the midterms. The core constitutional issue is clean: Congress assigned voter eligibility decisions to the states, not the federal executive. Sooknanan wrote bluntly that "the challenged policy represents the federal government's attempt to decide who gets to vote." The administration's theory — that cross-referencing SAVE data was a routine enforcement tool — collapsed under scrutiny because the database itself contains outdated citizenship records, meaning naturalized US citizens could be wrongly flagged and removed from rolls. The scale of the administration's effort is striking. The DOJ demanded unredacted voter rolls from nearly all 50 states, including sensitive personal information. Eighteen states, mostly Republican-led, complied. The department then sued 30 states and Washington, DC, over their refusal to hand over data. Twenty-six of those cases have already been dismissed — a conviction rate that suggests the legal theory was never robust. The ACLU's Ming Cheung framed the pattern plainly: the administration has "repeatedly taken extreme measures to interfere with how elections are run, undermine confidence in the results, and create confusion." Whether or not one shares that characterization, the factual record supports a pattern of aggressive federal action followed by judicial reversal. The DOJ said it was reviewing the ruling. A separate proceeding adds context. In June, Sooknanan had already blocked expanded use of SAVE for voter roll checks. The Supreme Court temporarily paused that order last month, leaving the legal battlefield active on multiple fronts. Federal law independently bars systematic voter roll purges within 90 days of a federal election, which limits the practical damage before the November 3 vote regardless of appeals. The deeper question is institutional: what happens when the executive branch treats a database designed for benefits verification as a voter eligibility tool? SAVE was built to check immigration status for entitlement programs, not to adjudicate citizenship for voting purposes. Repurposing it introduces error rates that fall disproportionately on naturalized citizens — the exact population most vulnerable to bureaucratic disenfranchisement. Trump directed the DOJ crackdown last year despite research consistently showing voter fraud by ineligible people is rare. The gap between the stated justification (election integrity) and the mechanism deployed (mass data-matching against a flawed database) is where the extraction lives. The cost falls on eligible voters flagged for removal; the benefit accrues to those who gain political advantage from a smaller, more favorable electorate.