People voting on their elected representatives is an example of what constitutional principle

Democracy

Explanation:

The term referred to designate one of the forms of government in which the political power of and for the people can be exercised.

The concept has been approached academically from the theory of the form of government according to its uses based on the numerical criteria in which power is exercised, democracy being the form of government of the majorities or the many, unlike monarchies.

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