Stop signs? Roads are primarily a function of the state governments. Although post roads are an enumerated power under Article I, Section 8.
Still, just because the federal government exceeds its constitutional authority now doesn’t mean it should. That’s an argument liberals use to justify their big government programs. You still haven’t provided me with a clause that authorizes drug laws.
“You still haven’t provided me with a clause that authorizes drug laws.”
You still haven’t showed me one drug law ruled unconstitutional. Keep in mind they’ve existed since the 1930s and well before that at the state level.