The concept of popular sovereignty asserts that the authority of a state and its government are created and sustained by the consent of its people. This principle is foundational to democratic governance, emphasizing that the legitimacy of political authority derives from the will of the populace. Under popular sovereignty, citizens have the right to participate in decision-making processes, including voting and expressing their views on legislation. This concept empowers individuals, reinforces the notion of citizenship, and serves as a check on governmental power, ensuring that leaders remain accountable to those they serve.