The Peronist party, proscribed since 1955, was allowed to run for the 1973 elections. The Peronist party won the elections, and Héctor Cámpora became president. Rodríguez Saá became a provincial legislator, and led the Peronist deputies in the chamber. He joined the right-wing Peronist unions, led by Oraldo Britos. He opposed the governor Elías Adre, who was aligned with left-wing Peronism. After the 1976 Argentine coup d'état, he left politics and worked in a law firm with his brother.