The court said the old laws focused on people whose substance abuse left them unable to manage their lives, while the federal law broadly covered regular drug users regardless of whether they posed a threat to anyone.

“It’s a good day for the Second Amendment when all nine justices can agree to protect gun rights,” Severino said. "The mere fact of illegal drug use, without more, isn’t enough to justify prosecution for gun ownership. Historically, ‘habitual drunkards’ who habitually lost use of their reason could have their rights restricted, but not just regular drinkers — even including Founding Fathers like John Adams, who drank ‘a tankard of hard cider’ with breakfast, or James Madison, who ‘consumed a pint of whisky daily.’

Seems like an incredibly reasonable take.