enquirer." the new yorker's robe farrow says they use a secretive practice by buying rights to the story and making sure it never sees the light of day. cnn's brian stelter explains. >> donald trump and former "playboy" model karen mcdougal. the new yorker is detailing evidence of a nine month affair that started in 2006. and a payoff scheme to keep the story from going public before the election. >> karen mcdougal feels she was cornered into a set of contracts that she finds onerous and exploitive. i think she's frustrated with her inability to speak in her view. and she has regrets about this. >> roan farrow said that "the national enquirer" paid for the rights and then never published it. the company in charge of the