Voting eligibility has been extended to larger numbers of U. S. citizens over time. Which principle does this trend reflect?

Voting eligibility has been extended to larger number of U.S. citizens over time and its principle is discussed below in details.

Explanation:

Voting is one of the most sacred and essential privileges that the United States citizens enjoy. At the beginning of the United States, only a few states granted the right to vote and that is only limited to white males and property owners. But due to the following amendments in the United States Constitution had been hard-fought battles to expand this voting rights. 26th, 24th, 19th, and 15th amendments were the key principles that extended to a larger number of U.S. citizens over time.

Singular characteristics.