Answer: Popular sovereignty
Step-by-step explanation:
The principle of Popular Sovereignty refers to the notion that the powers vested upon the Government of the United States of America were done and continue to be done so by the people of the United States.
In the context of the Constitution, the people of the United States established the Constitution in order to ensure the welfare of Americans. The Constitution therefore derives its powers from the will and consent of the people which is by definition, the principle, of Popular Sovereignty.