A federal judge has prohibited President Trump from enforcing an executive order requiring proof of U.S. citizenship for federal voter registration, sparking immediate controversy. Judge Colleen Kollar-Kotelly, a Clinton appointee, ruled the policy unconstitutional, stating the president lacks authority to unilaterally alter election procedures. The administration defended the measure as a safeguard for election integrity, but the judge emphasized that election regulation falls under state and congressional jurisdiction. The White House criticized the ruling, calling it an “unlawful” obstruction of efforts to ensure only citizens vote. Legal experts anticipate appeals, with critics arguing the decision undermines national security and electoral fairness.