Which US State became the first state to have a tribally enrolled Native American governor?

The US State that became the first state to have a tribally enrolled Native American governor was Oklahoma. Kevin Stitt (b. December 1972), a citizen of the Cherokee Nation, became Oklahoma's first Native American governor. Stitt is a businessman and politician who was elected and sworn in as the 28th governor of Oklahoma in January 2019.

Governor Stitt is a member of the Republican Party and his stated mission has been to lead the state of Oklahoma with a vision to become Top Ten in job growth, infrastructure, education, and more. With a background as an entrepreneur and businessman, who founded Gateway in Tulsa, Oklahoma (2000), he has said that he is more than prepared to reach his governmental goals.

The state of Oklahoma is in the South Central region of the United States, bordered by the state of Texas on the south and west, Kansas on the north, Missouri on the northeast, Arkansas on the east, New Mexico on the west, and Colorado on the northwest. Partially in the western extreme of the Upland South, it is the 20th in overall land area and the 28th-most populous of the 50 United States. Its residents are known as Oklahomans (or colloquially "Okies"), and its capital and largest city is Oklahoma City.