When the Supreme Court rejected a challenge to the federal law that disarms people who are subject to domestic violence restraining orders last month, its ruling was narrow. “Our tradition of firearm regulation allows the Government to disarm individuals who present a credible threat to the physical safety of others,” Chief Justice John Roberts wrote for the majority in United States v. Rahimi, which overturned a 2023 decision by the U.S. Court of Appeals for the 5th Circuit. The justices left for another day the question of whether the Second Amendment allows the government to disarm people w…