A terrorist attack - Some problems with Hillary's emails - more disclosures, etc!
Even a terrorist attack won't be enough - Trump is that bad a candidate!
I used to think that just a terror attack could do it, but not anymore. He is so awful, and will probably be even worse as a nominee, that it would take both a major collapse by Hillary (but something short of forcing her to bow out, somehow) AND a major boost to the pyrite-colored pustule on the face of humanity to let him have a shot. Something like a major terror attack or economic collapse.
