Artus, authorization is something…
Artus, authorization is something that people give or refuse to give; a dead scrap of paper “authorizes” a policy only in the analogical sense that it can serve as a medium to convey authorization from the people who issue it. So, to return to the question, who authorizes the government to do what it does when it acts within the powers enumerated by the Constitution (by, say, using force to take money in the form of tariffs or excise taxes, as enumerated in Article I Section 8)? Is it you? Ian? Gouverneur Morris? Somebody else?