2015. stone claims he quit. >> we go back a very long time. donald trump came to my wedding. i went to two of his. i have great affection for the trump family. >> reporter: what advice might the president have received? one passage from stone's book of life lessons stands out. quote, admit nothing, deny everything, launch counterattack. jake tapper, cnn, washington. >> all right, much more after the short break. but first, here's a sneak peak of the cnn original film "three identical strangers." >> when i tell people my story, they don't believe it, but it's true. >> i've always thought what would it be like if you turn the corner one day and you saw yourself? oh, my god. >> wow. >> the first time the boys met, the three together, it was a miracle. >> there was nothing that could keep us apart. >> that's when things kind of