Smathers began his political career in 1972, when he was elected to the Florida Senate from the 9th District, representing most of Duval County.[2][3] He had entered an already-crowded primary election field, facing incumbents Bill Beaufort and Lynwood Arnold, after the two were drawn into the same district. Smathers advanced to the primary runoff with Arnold, who he went on to defeat.
In 1974, he was elected Secretary of State. Once in office, Smathers reformed election laws, modernized the Division of Corporations, became involved in the "Atocha" treasure dispute, expanded support for cultural affairs, and was best known as leader of the successful effort to preserve Florida's Old Capitol (1845–1978).[4] At the time he took office, he was the youngest member of the Florida Cabinet in the twentieth century.
In July 1978, Smathers resigned to campaign for governor. He lost in the Democratic primary to Bob Graham.
Smathers was college roommates with two different members of Congress. Smathers roomed with U.S. Senator Bill Nelson during undergraduate studies at Yale University.[7]
