That's actually an excerpt from the article, not the book. I presume they evidenced that claim with thisSome people said this, others said that-- that's the claim and its true-- not that what those people said was actually true, just that it was said. I do wonder about the punctuation in the quote, (lying propaganda by the article's author perhaps), but it seems quite clear to me that it wasn't a claim of the book's author that white people wouldn't vote for a black prez."But some people said Americans weren't ready for that much change. Sure Barack was a nice fellow, they said. But white voters would never vote for a black president. Other angry voices were raised. Barack's former pastor called the country a failure. God would damn the United States for mistreating its black citizens, he said," the book says.