The Supreme Court is allowing states to resume using a controversial federal tool to check voter eligibility before the November elections. The emergency ruling lifts a lower court’s restrictions for now on the Trump administration's revamped version of the program, called Systematic Alien Verification for Entitlements, or SAVE. The Department of Homeland Security tool has been a central pillar of President Donald Trump’s crackdown on noncitizen voting, although its use remains voluntary. A federal judge had blocked its use, saying SAVE violates voter privacy and can lead to wrongful voter purges. Voting law experts advise that a 90-day rule barring systematic voter purges near an election will likely limit the ruling's impact on the midterms.