A political plot twist is unfolding in Florida as top Republicans—including Governor Ron DeSantis—came out against a Trump administration proposal that could reopen the eastern Gulf of Mexico to offshore oil and gas leasing. The opposition wasn’t about party lines. It was about geography, economics, and a stretch of water the Pentagon relies on heavily for testing and readiness drills. The Interior Department’s draft plan, released Thursday, floats the possibility of future leasing in the eastern Gulf—an area Congress…