This thesis explores the story behind the long effort to achieve Native American suffrage in Arizona. It focuses on two Arizona Supreme Court cases, in which American Indians attempted, and were denied the right to register to vote. The first trial occurred in 1928, four years after the Indian Citizenship Act granted citizenship to all Native Americans born or naturalized in the United States. The Arizona Supreme Court rejected the Native American plaintiff's appeal to register for the electorate, and subsequently disenfranchised Native Americans residing on reservations for the next twenty years. In 1948, a new generation of Arizona Supreme Court Justices overturned the court's previous ruling and finally awarded voting rights to all qualified Native Americans in the state. However, voting rights during the Civil Rights era did not necessarily mean equal voting rights. Therefore, this thesis also investigates how the Voting Rights Act of 1965 greatly reduced the detrimental effects of voter discrimination. This study examines how national events, like world war and the Great Depression influenced the two trials. In particular, this thesis focuses on the construction of political and social power in Arizona as it related to Native American voting rights. In addition, it discusses the evolution of native citizenship in the United States at large and for the most part within Arizona. The thesis also considers how the goal of native assimilation into American society affected American Indian citizenship, and how a paternalistic and conservative American Indian policy of the 1920s greatly influenced the outcome of the first trial. Another thread of this story is the development of mainstream white views of Native Americans. Lastly, this thesis identifies the major players of this story, especially the American Indian activists and their supporters whose courage and perseverance led to an outcome that positively changed the legal rights of generations of Native Americans in Arizona for years to come.