A 30-year-old convicted felon in southwest Florida was taken into custody last week after authorities say he posted a death threat on X against Rep. Byron Donalds, R-Fla., hours after President Donald Trump endorsed the congressman for governor. Dominic Ambrosia of Port Charlotte now faces charges of intimidation by written or electronic threat to kill or injure and failure of a convicted felon to register. He remains held without bond in the Ch…