In 1956, Mitchell was elected to the Florida House of Representatives, serving until 1959.[5] In 1978, he was elected to represent the 7th district of the Florida House, succeeding Wayne Mixson. He served until 1992, when he was succeeded by Rob Trammell. In the same year, he was elected to represent the 5th district, succeeding Robert T. Harden. He served until 1994, when he was succeeded by Durell Peaden.[2][3]
Mitchell died on November 15, 2003, at the age of 74.[6]