and impeachment ultimately is a kind of constitutional issue between executive branch and congress. people are exercise birthday that now. >> eli, one of the remarkable things about this whistle-blower complaint is in normal presidential scandals, the questions from the press, and i'm more accustomed to being on the receiving end of those questions were how high up did knowledge of the impending scandal go. did it reach the president, did it reach the national security adviser. in this case the transgression was on the part of donald trump. donald trump on the phone with president zelensky says i want you to investigate joe biden and his son even though the ukrainian government has investigated, has looked into that and considers it adjudicated. and in this case the scandal's about how deep down into the, you know, did he contaminate the nsc. did he contaminate the cia. did he contaminate the note-takers. how far did the contamination go. and it would seem like the contagion, as the whistle-blower