Ron Paul is synonymous for principle. He has called on Jeff Sessions to resign over his marijuana putsch.
Principled libertarians are with Ron—and are never confused about the devolution of power away from the Federales to states and to individuals. Libertarians ought not to support the federal goons’ drug war.
As for the prattle about a constitutional amendment. There’s no need for further Constitutional centralization. Letting states and individuals decide: Now that’s in THE CONSTITUTION.
Cannabis is not in the Constitution because … look up the Tenth Amendment.
The powers not delegated to the United States by the Constitution, nor prohibited by it to the States, are reserved to the States respectively, or to the people.