I tuned into the sixth Republican debate hoping to watch a spider fight a banana slug, and I was not disappointed. But I was also scared. Back in June, when Trump had yet to enter the race and governors dominated our nominating predictions, Jeb! Bush seemed like the saddest thing that could happen to the GOP. Now his warlike nepotism looks quaint. Ben Carson ventured into the realm of speculative fiction last night with his vision of a simultaneous cyberattack and electromagnetic pulse, but Trump and Cruz articulated the real doomsday scenario. Today is Friday, and the Republican nomination has become a contest between a billionaire too dumb to see the truth and a sociopath too smart to speak it. Won’t you choose the lesser evil with me?