The 1928 United States Senate election in Florida was held on November 6, 1928.
Incumbent Democratic Senator Park Trammell defeated a primary challenge from Governor of Florida John W. Martin and was re-elected to a third term in office over Republican Barclay Warburton.
Republican Herbert Hoover won the state in the concurrent presidential election, and though Hoover's coattails did not make the race close, Warburton's percentage of the vote would not be exceeded by a Republican nominee for Senate until 1964. A Republican would not win a county in a U.S. Senate election in Florida again until 1950.
Fetching the article from Wikipedia…
Text from the Wikipedia article “1928 United States Senate election in Florida”, available under CC BY-SA 4.0.