the constitution commands the president take care of the laws be faithfully enforced. that doesn't effect making the chief law enforcement officer in the federal government. does it not? >> commonly expressed that way. >> so if probable cause exists, does the president have the authority to inquire into that matter? >> he has but i have to -- this is where i think we would depart. i've been critical of the president in terms of crossing lines with the justice department. i think that has caused considerable problems. i also don't believe it's appropriate. we often confuse what is inappropriate with what is impeachable. you know, many people feel that what the president has done is obnoxious, contemptible. contemptible is not synonymous with impeachable. >> the national defense authorization act requires the secretary of defense said that the ukraine has to make reforms for among other things to