West Virginia and Montana led 27 states Wednesday that filed an amicus brief with the Supreme Court urging the court to “rein in” the Biden administration’s new frame or receiver rule. The states, through their attorneys general, alleged the Bureau of Alcohol, Tobacco, Firearms and Explosives’ new rule essentially broadening the definition of “firearm” to include gun parts (like frames and receivers) is an “overreach.” “[W]hen the Court...