>> reporter: in addition to that, we know that the "propublica", the investigative journalism group published confidential irs filings on six conservative groups. somebody within the irs had to have sent them that. former chair of the council of economic advisors, austan goolsbee admitted in a conference call he divulged confidential irs information how koch industries is organized. he represents koch industries. >> we were concerned at a orchestrated campaign starting at the top of the white house to attack and disparage the koch family and their enterprises. >> reporter: olson adds for the government to send its tax agencies after organizations or people critical of government is very, very scary. jenna? jenna: one of the big questions is how high up does this go, doug? we're hearing that former irs commissioner douglas shulman, spent a lot of time at the white house.