it's about truth. so if mr. trump lied about would versus would not and what he said to putin, he lied about denying that he knew anything about the mcdougal issue. this is truth versus lying. ultimately, donald trump is going to be done in by the truth. >> figuretive. what is going on here? what might be the most glaring sign of cohen's about face? his lawyer revealed secret audio between his client and then presidential nominee donald trump. it reveals a conversation about a payment to buy karen mcdougal's story in the weeks before the election in order, it seems, to bury it. mcdougal alleges she had an affair with donald trump back in 2006. an affair that donald trump has denied. the audio we are about to play first aired on cnn. nbc news has authenticated the audio with cohen's attorney but we cannot confirm whether the