Edit: According to AI, I've got this a bit backwards. The ruling hits the taxing power, not the commerce clause. It's nonetheless interesting, since the machine gun ban may be affected. The court says that you can't use a tax to ban something outright, which is what the post-1986 machine gun ban is: refusing to collect a tax on post-1986 machine guns, effectively banning them. That leaves the commerce clause as the r…
Though I would gladly see Wickard v Filburn overturned. Commercial regulations already vary by state, and the US would still be more cohesive than the EU is today, but the amount of water that flows through my showerhead doesn’t have to be a concern of the federal government. In fact, we don’t even need Wickard v Filburn to be a more cohesive federation than Canada, which doesn’t even have free trade between provinces.