Final answer:
The constitutional principle found most clearly in this text is Popular Sovereignty.
Step-by-step explanation:
The constitutional principle found most clearly in this text is Popular Sovereignty. Popular sovereignty is the principle that the power of the government is derived from the people, and they have the ultimate authority to govern. In this text, it states that the members of the House of Representatives are chosen by the people of the several states, which is a clear example of popular sovereignty in action.