Territorial Governor Frank Frantz oversaw the transition from territory to state. He was selected as the Republican nominee to serve as the state's first governor. He faced the Democratic Charles N. Haskell in the election on September 17, 1907. In the same election, the Oklahoma Constitution was proposed. The constitution was passed and Haskell was elected governor. Once the people of Oklahoma adopted the United States Constitution on November 16, 1907, Oklahoma and Indian Territories officially dissolved, and the State of Oklahoma was admitted to the Union as the 46th state.