Earlier quoted context omitted.
Unfortunately that's not how it works, at all. Especially when there are legal conflicts between the state and federal governments like this. There are so many laws on the books, many of them horribly outdated, and legislatures are overworked / grid locked. Often, the only way for us to have a working body of law that makes sense is for the government to simply stop enforcing the outdated ones. In the case of the Oba…
Yes, the government has some prosecutorial discretion, the legal limits of which are uncertain. But there is no legal ambiguity or conflict as to federal government's authority to enforce drug laws (as I originally read your post to suggest, though perhaps you have edited it?). Federal law is supreme and the Supreme Court has already ruled on this particular issue, going so far as to allow the punishment of someone w…
Courts will generally not make rulings that undermine their own authority, so if they see that their ruling will be ignored anyway, that does shape their opinion.
After many state referendums legalizing cannabis, especially in western states which are already hostile to the federal government, the Supreme Court would think long and hard about the potential constitutional crisis that could arise from going against the popular will on this issue.
I expect they will find some new justifications for a more nuanced approach if the issue is put to them again.