Final answer:
The principle of popular sovereignty in the US Constitution is illustrated by the concept of "We the People."
Step-by-step explanation:
The principle of popular sovereignty is best illustrated in the US Constitution through the concept of "We the People." This phrase is found in the preamble and signifies that the power of the government comes from the consent of the governed. By placing the power in the hands of the people, it demonstrates the idea of popular sovereignty.
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