SCOTUS Reshapes Second Amendment Boundaries

The Supreme Court spent 12 days last month dismantling three of the gun control movement's most confident assumptions.

State of play: In rapid succession, the Court ruled unanimously that cannabis users can't be stripped of gun rights without evidence of actual danger, struck down Hawaii's de facto ban on carrying firearms into businesses open to the public, and agreed to take up state-level "assault weapon" bans.

Catch up quick:

• June 18: Unanimous ruling throws out federal prosecution of a Texas marijuana user who owned a pistol. The law dating to 1968—reaffirmed in 1986—made that a felony.
• June 25: Six justices overturn Hawaii's law requiring explicit owner permission before carry-permit holders could bring firearms into any private business open to the public.
• June 30: Court agrees to hear a pair of cases directly asking whether the Second Amendment protects AR-15 platform and similar semi-automatic rifles.

The legal question: Everything runs through the Bruen historical tradition test—if a restriction has no analog in this nation's founding-era firearms law, it fails. The cannabis ruling applied it. The Hawaii ruling applied it. The assault weapon cases will apply it.

On Hawaii specifically, Justice Alito's majority opinion cut straight to the problem. The common-law rule on private property open to the public is simple: you can enter unless the owner has told you not to. Hawaii flipped it—nobody carrying a firearm could enter without explicit permission. As Alito wrote:

"Everyone, including those lawfully carrying firearms, may enter unless expressly prohibited from doing so."

That's not a minor procedural distinction. Hawaii was attempting an end-run around the Court's 2022 Bruen decision, which recognized a constitutional right to carry handguns in public for self-defense. Make enough locations effectively off-limits and the right evaporates in practice. The Court wasn't fooled.

The intrigue: The cannabis ruling may have longer legs than anyone's advertising. The Court said drug use alone—without evidence of actual danger—cannot justify disarming someone. Follow that logic one step further: what about a nonviolent felony conviction? The federal prohibition on felons possessing firearms has always been treated as settled. It may not be as settled as everyone thought.

What to watch: The assault weapon cases are the headline-grabbers going forward. Roughly 30 million of these rifles are owned by law-abiding Americans. They're rarely used in crime. The Court has already said the Second Amendment covers arms "in common use" for "lawful purposes like self-defense." If the Court applies that standard consistently, magazine limits and California's handgun roster face serious exposure too.

The bottom line: The Court spent nearly two decades recognizing a right to arms without fully defining what that right protects. It's defining it now—and the answers are going the right direction.