let me ask you, as you did this book, what were you thinking of these biters, these whackos out theref she actually existed the way we're watching her. actually had american mother having an american kid. you knew it all as texturized reality. the absolute wall to wall truth of it and you're listening to these jokersers. what was your reaction to all that? >> it was a little baffling, chris. i started working on this during the campaign. the issue kind of came up then, but it receded. i wasn't a preoccupation of mine. i spent two and a half years, talked to close to 200 people. not a single person ever mentioned any knowledge or any spent any time in kenya around the time of the birth of her son. i felt pretty comfortable about that. when it resurfaced, a la donald trump, i would say, i was stunned. i thought it was pretty much a settled issue. when it continued i went back and reconferred all the evidence and came to the conclusion that you and everyone else that it was a classic conspiracy theory. and all evidence to the cob trar that you would think would convince people otherwise