Indian Citizenship Act/Snyder Act Some Indians had received citizenship through marriage, joining the military, or special treaties, but many were still not citizens. So on June 2, 1924, congress granted citizenship to all Native Americans born in the U.S. Many people believed that the Native Americans earned the right to be citizens after fighting during wartime. They were no longer segregated like African Americans. Not all Native Americans wanted the right to vote. Some tribes feared that they would have to give up their sovereignty and that the federal government would deny its treaty obligations. They thought that it was just another way of the government trying to control them and take away their traditions. Only a 1/3 of them were eligible to apply for citizenship under this act, because the rest already had. Just because all Native Americans were now citizens did not mean that all states were willing to grant them the right to vote. It was not until the middle of the twentieth century that Arizona, New Mexico, and Maine finally allowed them the right to vote.