I know my Roman history pretty well. Do you know all the things Caligula did? I thought of Nero but Caligula’s relentless pursuit of personal power to the point of naming himself a god; his totally corrupt nature; and his utter contempt of other branches of governemt reminded me a lot of Obama. Caligula appointed his horse to the Roman Senate and made Senators trot alongside his chariot. Hard to choose between Nero and C. but I think C. was probably the bigger S.O.B.
I think Caligula also once declared war on the ocean, and had his soldiers stab at the waves.