When Donald Trump announced his candidacy last year, one of the qualifications he listed was his best-selling book, “The Art of The Deal.” Part memoir, part business advice book, it presents Trump as the savviest of negotiators. But there’s a problem: Trump didn’t actually write the book—at least not according to “Art of The Deal” ’s co-author and ghost writer, Tony Schwartz. Schwartz spent more than a year with Trump back in 1986. He hasn’t ever talked publicly about the experience of working with him —until now.