Which amendment to the Arizona Constitution established the right to vote for all citizens aged 18 years or older?

The 26th Amendment to the United States Constitution is significant because it explicitly guarantees the right to vote for all citizens who are 18 years of age and older. This amendment was ratified in 1971, primarily as a response to the arguments that if individuals are old enough to be drafted for military service, they should also have the right to participate in elections.

In contrast, the other amendments listed address different issues: the 24th Amendment prohibiting poll taxes in federal elections, the 20th Amendment which outlines the terms of office for Congress and the President, and the 22nd Amendment which limits the number of terms a President can serve. Each of these amendments serves a unique purpose within the framework of rights and governmental structure, but they do not relate directly to establishing voting rights based on age. Thus, the 26th Amendment is the correct answer concerning the voting age in Arizona and the broader context of U.S. voting rights.