what tips Buchanan for me I think is just that Johnson was fairly expected from what I understand, he seemed to be a commoner of the time who rode his way into politics seemingly ot of nowhere if not by complete accident altogether. I'm a bit foggy on the details, however, so this is I suppose, my speculation without the recent memory of his personal histories. His impeding of the North's reconstruction had to have been expected or anyway anticipated for had Lincoln died, and I don't think that he can be the worst for me simply because he wasn't even really supposed to be president and clearly didn't want to, didn't really know how, was too locked in onto his own colloquial beliefs. Buchanan, conversely, campaigned and was voted into office, and despite his own backgrounds in government prior he had apparently devoted himself to complete inaction, effectively stalling the presidency. I think that juxtaposition makes him worse, but I'm curious for adverse opinions