Supporters of gun control and firearm safety measures hold rally outside the Supreme Court as the justices hear oral arguments in State Rifle and Pistol v. City of New York on December 2, 2019. | Saul Loeb/AFP via Getty Images

The Supreme Court’s Republican majority spent much of Tuesday morning trying to figure out how two mutually exclusive principles can both be true at the same time. One principle is that all Second Amendment cases must be judged using a bespoke legal rule that only applies to the Second Amendment. The other principle is that the right to bear arms must not be treated differently than other constitutional rights.

Four years ago, in New York State Rifle & Pistol Association v. Bruen (2022), the Republican justices struck down a century-old New York law that required anyone who wishes to carry a handgun in public to demonstrate “proper cause” before they could obtain a license allowing them to do so. On Tuesday, the Court heard Wolford v. Lopez, a challenge to a Hawaii state law that appears to have been designed intentionally to sabotage Bruen.

While the law at issue in Bruen directly banned most people from carrying a gun in public, Hawaii’s law tries to achieve this same goal indirectly by requiring gun owners to obtain explicit permission from a business’s owner or manager before they can bring a gun into that business. Because few businesses are likely to grant such permission — and few gun owners are likely to go into a business unarmed, ask the manager for permission, and then return with their weapon — Hawaii’s law is likely to operate as an effective ban on firearms in most public spaces.

But Bruen also announced a bizarre legal rule that applies only in Second Amendment cases. Under Bruen, a gun regulation is constitutional only if the government can “demonstrate that the........

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