A Donald Trump supporter had an aerial message for Taylor Swift and her 85,000 fans who sang, swayed and went crazy with delight when she and Florence Welch performed “Florida!!!” at Miami’s Hard Rock Stadium Saturday. A banner tied to the tail of a small airplane buzzed overhead: “Trump 2024 – Ready For It. Cat Lady? MAGA.” The airborne message, reported by StarBioPic.com, comes about six weeks after Swift made headlines following the Harris-Trump debate when she endorsed Kamala Harris, whom the pop star called a “steady-handed, gifted leader.” Swift’s endorsement on Instagram that went out t…