A new chapter this week in the Chronicles: people are starting to say out loud that the Republican nominee for President of the United States might actually be crazy. Not crazy as in zany, ha-ha, or crazy like a fox, or politically incorrect or imprudent or what have you, but crazy as in, Holy shit, this country might be about to elect a sociopath.

It’s an opinion that has crept upon us slowly, in part because it sounds so hyperbolic. You tell the other guy his party’s nominee may have some...