Bill Federer, the author of a “quote book” featured repeatedly in Ben Carson’s America the Beautiful, defends the neurosurgeon-turned-presidential aspirant from charges of plagiarism. “In my estimation, he has used my material exactly the way I wanted my material to be used,” Federer tells National Review Online. “The fact that he had cited me 16 times shows that his intention was to be honest and up front in his use of my material and the two times that the BuzzFeed article cited that he had not, in my estimation, is an editor’s oversight, errata, and it’s not plagiarism.” The conservative...