They stated their objectives, and then they divided the powers of government explicitly among the national and state governments, according to their determination of which level of government was appropriate to exercise the power necessary to accomplish those objectives.
No. You don't get it. All officers of government in this country must swear a binding oath to fully support those purposes, within their legitimate jurisdictions, without exception.
-- Article VI, the United States ConstitutionThe Senators and Representatives before mentioned, and the Members of the several State Legislatures, and all executive and judicial Officers, both of the United States and of the several States, shall be bound by Oath or Affirmation, to support this Constitution..."
What enumerated power gives jurisdiction to the national government?