I think on Rome fairly often, but it's usually more often on the republic.
about how the Republic fell and became a totalitarian state.
I was thinking about this literally yesterday, on the nature of Octavian betraying the Republic, and how the Iulii and the Claudii simply kept themselves on power through the whole process. (Both gentes were already powerful in Republican times.) Or how some of the Claudii called themselves "Clodius" instead of "Claudius" for the sake of populism. ("See? I'm from the people! I even speak like a pleb!")