Pompey-Caesar by far had a greater impact. In mo later than 8 years, perhaps 4 years, Trump will be gone. In addition, the US system of checks and balances severely limits Trumps power. Whoever won between Pompey and Caesar could largely do what they like. I don't see any month of the year being named after Trump, and a 100 years from now Trump will just be a footnote in history, probably no more remembered than many of the other presidents like Filmore.