i think julian assange has the proof and going to furnish it to the american people. >> reporter: the next day, stone tweeted hillary lies about russian involvement in dnc hack, julian assange is a hero. stone later explains that he also jokes about visiting assange during a phone call. it had been nothing but a throw-away line. i simply milked the joke a little more in a subsequent e-mail. end of story. was it all a joke? the conservative website said stone showed them a boarding pass from jfk to los angeles. he also provided another boarding pass showing he flew on delta air lines from los angeles to miami, florida, he would have