The president’s son is the target of a Justice Department investigation scrutinizing his purchase of a gun in 2018 — a time when he has said he was regularly using crack cocaine. Federal law bans drug users from owning guns.

But the constitutionality of that law — like many other provisions restricting gun ownership — is newly in question after a precedent-rocking decision the Supreme Court handed down almost a year ago.

His lawyers have already told Justice Department officials that, if their client is charged with the gun crime, they will challenge the law under the Second Amendment, according to a person familiar with the private discussions granted anonymity because they are not authorized to speak publicly. That could turn a case that is already fraught with political consequences into a high-profile showdown over the right to bear arms.”

https://www.politico.com/news/2023/06/01/hunter-biden-supreme-court-second-amendment-00099544