investigation that they're pursuing, is that in itself an element of obstruction? >> it absolutely is. the statute says if you try to impede a federal investigation, then you are guilty of a federal felony. and with donald trump, it's not just that he asked for a pledge of loyalty from his fbi director. it's not only that he asked the national security intelligence folks if there's any way they could thwart the investigations, not only that he reaches out to michael flynn after he's been fired and tell him to keep your head up. i'll see what i can do. it's this attitude that he has. the idea that not only would he try to influence the general direction of federal prosecutions, but that he would go all in in a micro way and suggest that certain persons in an investigation should be required not to talk or actually