Anyone who's been paying attention knows that much of what is in Obama's autobiography is fiction. According to Jack Cashill, the fiction even includes his authorship. So it isn't a surprise that Obama told David Maraniss that the supposed girlfriend in the book is actually a composite. Like most of what we get from Obama and his friends these days, the operative line is "fake, but accurate."
With Obama, the 'fake' part is always easy to see. The accurate part? We're still waiting.