The Justice Department has sued the City of Denver over its ordinance that bans many semi-automatic rifles, arguing the law violates the Second Amendment and targets commonly owned firearms like AR-15-style rifles.
The Department of Justice filed suit this week against the City of Denver, claiming the municipal ordinance unlawfully criminalizes possession of certain semi-automatic rifles. The complaint says the law sweeps in AR-15-style rifles, which are among the most popular platforms in the country. The suit frames the ban as a direct infringement on the right of law-abiding Americans to keep and bear arms for lawful purposes.
The complaint appears under the title Complaint for Relief – Us v City of Denver Colorado 0 by scott.mcclallen and presents the DOJ’s legal arguments against the ordinance. The filing stresses that millions of Americans lawfully own rifles the city now seeks to outlaw. The paperwork sets up a constitutional clash between local regulation and federally protected rights.
The legal backdrop for the suit points back to the Supreme Court’s 2008 decision in District of Columbia v. Heller, which held that the Second Amendment protects possession of weapons in common use for lawful purposes. The DOJ’s complaint leans on that precedent to argue Denver’s ban cannot stand when it covers arms commonly used by civilians. The city’s ordinance, in the DOJ’s view, steps over the line the Court established.
Acting Attorney General Todd Blanche put the department’s stance plainly: “The Constitution is not a suggestion and the Second Amendment is not a second-class right,” said Acting Attorney General Todd Blanche. “Denver’s ban on commonly owned semi-automatic rifles directly violates the right to bear arms. This Department of Justice will vigorously defend the liberties of law-abiding citizens nationwide.”
The complaint underscores a basic Republican view: laws that single out widely owned firearms punish responsible owners while doing little to stop criminals. The suit notes that tens of millions of rifles like those Denver wants to ban are already in private hands across America. Rather than reduce crime, broad bans risk criminalizing ordinary citizens and eroding constitutional protections.
Denver’s ordinance is described in the court papers as a ban on so-called “assault weapons,” but the complaint focuses on functionality and common use, not labels. “When the City banned AR-15 style rifles with standard capacity magazines, it banned an arm in common use for lawful purposes by law-abiding citizens,” the lawsuit said. “Therefore, the Ordinance violates the Second Amendment, and the United States brings this action to vindicate the rights of Denver citizens whose rights have been—and are continuing to be—violated by Defendants.”
Assistant Attorney General Harmeet K. Dhillon reinforced the DOJ’s commitment to defend those rights and explained the department’s approach. “I have directed the Civil Rights Division, through our new Second Amendment Section, to defend law-abiding Americans from restrictions such as those we are challenging in these cases,” said Assistant Attorney General Harmeet K. Dhillon of the Justice Department’s Civil Rights Division. “Law-abiding Americans, regardless of what city or state they reside in, should not have to live under threat of criminal sanction just for exercising their Second Amendment right to possess arms which are owned by tens of millions of their fellow citizens.”
The case will test how far municipal governments can go in restricting popular arms before federal constitutional protections push back. From a conservative perspective, this lawsuit is about preserving individual liberty against overreaching local rules. Courts will weigh precedent, public safety claims, and the practical reality that millions of Americans own the very rifles Denver seeks to ban.
The dispute highlights a larger debate about crime, policy, and constitutional boundaries that Republicans argue should favor individual rights and clear legal standards. If the DOJ succeeds, the ruling could limit similar municipal bans and reaffirm the idea that common-use weapons are protected under the Second Amendment. If the city prevails, it will signal a different balance between local regulation and nationwide constitutional guarantees.
