What's in a Word?: A Commentary by Susan Estrich
Not much, in my experience, if you're a presidential candidate. The speechwriter gives the candidate the speech for the next stop on the flight. He marks it up, or not, and out come the words, like magic. Original means he's never said it before. Usually he has, albeit in a different way. Original doesn't mean he wrote it, but that he's the first one to say it.