Who was the first U.S. president to speak over the radio? July 7, 2020 by Pamela Landy Warren G. Harding was the first president to speak over the radio, on June 14, 1922. Related Answers What happened to the DuMont TV network? What was the “Make-Believe Ballroom”? What language do Belgians speak and where is the country located? How many people speak Basque? Did Priscilla Mullins ever say to John Alden, “Why don’t you speak for yourself, John?” When did the first radio station broadcast?