Which amendment addresses the rights of voters and their elections through representation?

The correct answer relates to Amendment 23, which grants residents of Washington D.C. the right to vote in presidential elections. This amendment demonstrates an important aspect of voter representation, as it allows citizens who live in the nation's capital, but who do not live in any state, to participate in selecting the president and vice president of the United States.

This amendment was particularly significant because prior to its ratification in 1961, residents of D.C. were disenfranchised in federal elections, despite being subject to federal laws. By including D.C. in the electoral process, the amendment underscores the importance of fair representation and voting rights for all American citizens, regardless of where they live.

The other amendments mentioned address various rights related to voting and election processes but do not focus specifically on the representation of voters in relation to presidential elections in the same way. Amendment 19 grants women the right to vote, which was a monumental step for gender equality in voting. Amendment 20 primarily deals with the terms of office for the President and Congress, while Amendment 24 prohibits poll taxes in federal elections, thus removing financial barriers to voting but not directly addressing representation in electoral processes.