Part of a legal description of a boundary line of Dixie County, for instance, says it goes "southerly down the thread of the main stream of said Suwannee River to the Gulf of Mexico; thence along said Gulf of Mexico, including the waters of said gulf within the jurisdiction of the State of Florida, to the mouth of the Steinhatchee River."

Gov. Ron DeSantis of Florida referred to the Gulf of Mexico as the “Gulf of America” in a state executive order on Monday, even before President Trump had taken any presidential action to rename the body of water.