How does U. S. federal government gains its power?

The first principle is that government is created by and gets its power from the people. This idea is called popular sovereignty. The Declaration of Independence had stated this idea clearly when it said: "Governments are instituted among Men, deriving their just powers from the consent of the governed."

Explanation:

on december 1, 1774, the continental association was created to boycott all contact with british goods. by reversing the economic sanctions placed on the colonists, the delegates hoped britain would repeal its intolerable acts.