I do actually have deeper knowledge about partisan alignment in the greater population. Even if I didn't, the conservatives did not rank Trump worst. They ranke

I do actually have deeper knowledge about partisan alignment in the greater population. Even if I didn't, the conservatives did not rank Trump worst. They ranked Buchanan worst, Trump was #40. When you say this: "Donald Trump is objectively (ranked by presidential historians of all political parties) as the worst president in the 242 year history of the US." That usually means that presidential historians of all parties ranked him worst, or at least that a poll controlling for party/political leaning as a variable concluded that he was worst. Neither was the case here.