RFK and Bryan are solid choices, but no one's said Alexander Hamilton yet?
Hamilton by 1798 wanted the equivalent of a military dictatorship, so...
So? The US was on the brink of war with France. Regardless, Hamilton always wanted a more robust government than the other founders. He would've likely been either a great, transformational figure as President or a scathingly unpopular failure. That potential alone should put him squarely in this discussion.
There's also the third option that he really would have declared martial law in the Jeffersonian states, invaded Spanish Florida and Louisiana (rand Mexico if that went well), and declare war on France. I don't see how these actions would not lead to either civil war or foreign recolonization.
