mobil.a nch of people that incorporate as 501 c4s, social welfare organizations. but are going to be getting a lot of ads in and don't have to disclose their donors. the question is, well, these things that say they're 501-c4s, and aren't necessarily political, have to go through all of this political stuff. the irs has to stay what is the standard, what do you learn about what the irs is supposed to do when faced with this genuinely difficult question. these people say they're going to be a social welfare organization. they're also clearly political. which side of the line do they fall on? >> here's the main thing i learned from this. the people in cincinnati who are charged with looking at the applications and deciding if a c4 group is going to do permissible political activity, don't themselves understand the irs rules for what is permissible activity. now, it's not totally surprising. >> literally it said in the report, we don't know.