A Landmark Second Amendment Showdown Is Coming

For more than a decade, lower courts have wrestled with a question the Supreme Court has repeatedly declined to answer: can states and cities ban AR-15-style rifles and other semiautomatic weapons often labeled "assault weapons"? That era of avoidance just ended.

On June 30, 2026, the Supreme Court granted certiorari in two consolidated cases — Viramontes v. Cook County (out of the Seventh Circuit) and Grant v. Higgins (out of the Second Circuit) — agreeing to finally resolve whether the Second Amendment protects the right to own the most popular rifle platform in America. Oral arguments are expected this fall, during the Court's October 2026 term, with a decision likely by mid-2027.

This isn't a minor procedural dispute. If the justices side with the challengers, similar bans in roughly a dozen states — including California, New York, New Jersey, Maryland, Massachusetts, and Washington — could be struck down almost overnight.

What Are These Cases Actually About?

Viramontes v. Cook County (No. 25-238)

This case challenges a Cook County, Illinois ordinance that bans "assault weapons," a category the law defines by specific features — like the ability to accept large-capacity magazines, pistol grips, or muzzle brakes — along with a long list of named firearm models. The Seventh Circuit had previously upheld similar Illinois restrictions in a related case, ruling that the covered firearms weren't meaningfully different from military-grade weapons that can be regulated under existing Supreme Court precedent.

Grant v. Higgins (No. 25-566)

This case takes aim at Connecticut's assault weapons law, which was significantly strengthened after the 2012 Sandy Hook Elementary School shooting. The Second Circuit upheld the law, finding it targeted "unusually dangerous weapons" consistent with the nation's historical tradition of firearm regulation. Connecticut argues that widespread ownership of a weapon doesn't automatically shield it from regulation — particularly when new social realities, like the modern rise in mass shootings, weren't anticipated when the technology first hit the market.

Both cases will be argued together, and the Court's ruling will apply to both.

The Core Legal Question

At the heart of both cases is a clash between two competing Second Amendment frameworks the Supreme Court itself has established:

• The "common use" test (from District of Columbia v. Heller): Weapons that are in widespread lawful use by law-abiding citizens are generally protected. Challengers argue that with an estimated 32 million-plus AR-platform and similar rifles in circulation nationwide, these firearms are about as "commonly used" as it gets.
• The "historical tradition" test (from New York State Rifle & Pistol Association v. Bruen): Modern gun laws must be consistent with the nation's historical tradition of firearm regulation. Governments defending the bans argue that AR-15-style rifles function like military weapons and fall outside what the Second Amendment was ever meant to protect.

How the Court balances these two tests — and whether it decides a weapon's popularity alone makes it constitutionally protected — will shape gun policy nationwide for a generation.

Why Now? The Road to Certiorari

This moment has been building for years. Assault weapons bans date back to 1993, when Cook County and Connecticut were among the earliest jurisdictions to adopt them, followed by a federal ban in 1994 that expired in 2004. Since then, nearly a dozen states have passed their own versions, often in the aftermath of mass shootings — Illinois's statewide ban followed the 2022 Highland Park July Fourth parade shooting, for example.

The Supreme Court had previously sidestepped this fight. In 2025, the Court declined to hear a challenge to Maryland's assault weapons ban, but Justice Brett Kavanaugh wrote separately that the Court "should and presumably will address the AR-15 issue soon." That prediction has now come true. The cert grant also arrived just days after the Court issued two other significant Second Amendment rulings, signaling a bench increasingly willing to revisit gun regulation nationwide.

Notably, the Court chose not to take up a related question about ammunition magazine capacity limits in this round — though many observers expect the ruling to send strong signals about how those laws will fare too.

What's at Stake

• A dozen-plus state bans hang in the balance. California, New York, New Jersey, Massachusetts, Maryland, Washington, and other states with similar prohibitions could see their laws invalidated if the challengers win.
• A nationwide precedent either way. A ruling upholding the bans would give states clear legal footing to regulate semiautomatic rifles. A ruling striking them down would likely trigger a wave of new litigation against remaining state and local restrictions.
• A test of the Court's current Second Amendment doctrine. This case will clarify — or complicate — how lower courts should apply the Heller and Bruen frameworks going forward, an area that has produced inconsistent rulings across the circuits for years.

What Happens Next

Briefing will proceed over the summer and into fall 2026, with oral arguments expected this term. A decision is likely to come by June 2027, following the Court's typical end-of-term timeline for major rulings. Expect a wave of amicus briefs from gun rights organizations, state attorneys general, and gun violence prevention groups as the case develops — this is shaping up to be one of the most closely watched Second Amendment cases in over a decade.

This is a developing legal story. Case details, briefing schedules, and arguments may evolve as the litigation proceeds — check official Supreme Court filings for the most current information.