FUCK THE POLICE
911 EVERY DAY
It could if it wasn't ruled that the Commerce clause applies and federal laws take precedence. They simply will not be allowed to package and sell an illegal substance, it won't matter what state laws they pass.
But the states don't have to help them out. That's a pretty big deal, Damo. You're acting as if all enforcement is by the feds, while a great part of it is by the state.