The Second Amendment Foundation has filed its opening brief at the U.S. Supreme Court challenging Cook County, Illinois’s “assault weapons” ban, setting the stage for a major legal showdown over Americans’ right to own popular semi-automatic rifles.
On Friday, August 28, the Second Amendment Foundation (SAF) formally submitted its opening argument in Cutberto Viramontes, et al. v. Cook County, Illinois, et al., a case now consolidated with Grant v. Higgins and set for Supreme Court review this fall. The filing marks a key moment in the decades-long national fight over local and state bans targeting so-called “assault weapons”, firearms that millions of law-abiding Americans own for self-defense and other lawful uses.
The Daily Caller reported that SAF and its partners announced the filing on social media Friday, calling their Supreme Court brief a “landmark” step that could “massively reshape the Second Amendment landscape.” Cook County’s contested ordinance, on the books since 2006, has become a test case for gun control advocates eager to defend sweeping restrictions, and Second Amendment supporters determined to strike them down.
SAF’s argument is straightforward: under recent Supreme Court precedents, bans on entire categories of commonly used firearms violate the Constitution. Their brief cites the Court’s landmark rulings in Heller and Bruen, emphasizing that the Second Amendment protects “all instruments that facilitate armed self-defense, regardless of when they were invented.” As the brief puts it, “Since Heller, the Court has continued to make clear that firearms are arms under the plain text of the Second Amendment.”
Konstadinos Moros, SAF’s Director of Legal Research and Education, made clear he sees the Supreme Court’s intervention as overdue. “Anti-gun states, relying on circuit courts that are hostile to the Second Amendment, have long gotten away with unserious arguments in AWB cases,” Moros said, using the abbreviation for assault weapons bans. “That tactic was always only going to work until the Supreme Court finally decided to take on the issue itself. That time has come, and our opening brief lays out the arguments that we believe will be adopted by the Court in its ruling.”
The Supreme Court’s willingness to take up the Viramontes and Grant cases follows a period of sharp disagreement among lower courts. While some federal appeals courts have upheld state and local bans on semi-automatic rifles, others have found such restrictions unconstitutional under the Second Amendment.
Just weeks before SAF’s Supreme Court filing, the U.S. Court of Appeals for the Third Circuit struck down New Jersey’s ban on so-called assault weapons and large-capacity magazines, declaring such laws in violation of the Second Amendment. The Third Circuit’s opinion in Cheeseman v. New Jersey Attorney General stated bluntly, “Applying the framework announced in New York State Rifle & Pistol Association v. Bruen, we agree with the District Court that New Jersey’s ban on Colt AR-15s violates the Second Amendment.” The court went further, expanding its ruling to cover all semi-automatic rifles and reversing the lower court’s order upholding the magazine ban, writing, “The [large-capacity magazine] Provisions also violate the Second Amendment, so we will REVERSE the District Court’s order with respect to those.”
This kind of circuit split is exactly what pushes major constitutional questions to the Supreme Court’s docket. As seen in other high-profile Court battles, from the Trump administration’s challenges to mail-in voting orders to disputes over White House projects, the justices often step in when lower courts send conflicting signals on the limits of government power (Supreme Court clears path for Trump mail-in voting order).
For SAF’s top officials, the Supreme Court fight is about pushing back against what they see as overreach by politicians who exempt themselves from the laws they impose on others. Adam Kraut, SAF’s Executive Director, called these bans “one of the largest and most pernicious gun rights issues facing Americans.” He argued that the Second Amendment “demands that it is ‘the People’ who get to choose what firearm is best suited to their lawful needs, not an ideologue legislator.”
Kraut stressed that modern semi-automatic rifles are the “overwhelming choice of Americans for all sorts of reasons, they are easy to shoot, mechanically accurate, modular and ergonomically adaptable.” He added, “As a result, Americans from all walks of life choose these firearms to defend their families and their homes. Our brief today lays out exactly why politicians who hide behind their own armed security do not have the authority to ban these firearms.”
That argument echoes the broader frustration many conservatives feel about elites imposing restrictions ordinary citizens must navigate, while shielding themselves from the consequences. The pattern is familiar from other Supreme Court controversies, such as efforts to expand the Court for political gain (Democrats adopt Supreme Court expansion as a Senate litmus test), or to push through divisive social policy by judicial fiat (Trump administration takes transgender military ban to the Supreme Court).
The Supreme Court granted review in both Viramontes and Grant on June 30, 2026, consolidating the cases ahead of oral arguments expected after the new term opens in October. The outcome will determine whether local and state governments can continue to outlaw entire classes of firearms that millions of citizens already own and use lawfully.
Recent decisions, including a 6-3 Supreme Court ruling concerning Hawaii’s so-called “vampire rule” on carrying firearms, suggest the justices are ready to clarify the scope of Americans’ Second Amendment rights. In that case, the majority, led by Justice Samuel Alito, rejected sweeping restrictions on carrying firearms on private property, a signal that broad bans may face an uphill battle in the Court’s current configuration.
The stakes are high, not just for gun owners, but for the future of constitutional government and the separation of powers. As with the Trump administration’s legal battles over military policy at the Supreme Court (Trump administration asks Supreme Court to overturn appeals ruling), the outcome will shape the rights of millions and set a precedent for how far states and counties can go in restricting core constitutional freedoms.
Chief Justice John Roberts has sometimes played a pivotal role in high-stakes Supreme Court showdowns, as seen in his intervention over the White House ballroom construction (Chief Justice Roberts lets Trump's $400 million White House ballroom construction continue). With this new gun rights case, the eyes of the nation will once again be on the Court as it weighs in on one of the most fiercely contested policy debates in America.
No matter how politicians and activists try to spin it, the Constitution puts the right to keep and bear arms in the hands of the people, not the whims of elite lawmakers or bureaucrats.
