A previous case of a drink being thrown at Gaetz resulted in a woman being sent to prison.
The alleged case involving Chambers happened at the South Walton Beaches food and wine festival on Saturday night.
The sheriff said Chambers cursed Gaetz before throwing her drink, which hit the congressman and another person. A woman with Chambers said she was the one who cursed.
Gaetz is a prominent ally of Donald Trump. He recently played a leading role in a rightwing rebellion that forced the California Republican Kevin McCarthy through 15 votes before he was confirmed as US House speaker.
Chambers was booked with one count each of misdemeanor battery and battery on an elected official. The latter is a felony.
