A federal judge has blocked a critical part of former President Trump’s campaign’s efforts to build a national voter database. The database contained information on millions of American citizens, raising privacy concerns. The ruling prevents the campaign from utilizing data acquired through potentially unlawful means. Plaintiffs argued the data collection violated privacy laws and constituted an invasion of privacy. The judge found sufficient evidence to support claims of improper data acquisition and potential misuse. The Trump campaign had intended to use the database for targeted voter outreach and mobilization efforts in future elections. Further legal proceedings are expected to determine the ultimate fate of the database and the legality of the data collection practices.