>> general holder, it's great to be with you again here in washington where congress is back in session. impeachment in the air, impeachment talk. i want to draw on your expertise. you came to this town 43 years ago and you worked in the public integrity unit of the justice department. do you believe there are grounds for impeachment for congress to proceed with impeachment? >> i don't think there's any doubt about that. if you look at just the mueller report there are grounds there for impeachment. there were ten specifications of possible obstruction of justice. i think that at least four of those are pretty solid. the attempt to get mcgahn to do certain things and get sessions to take over the investigation, i think there is clearly a basis for impeachment on the basis of mueller and the emoluments clause. i don't think there is a basis for an impeachment inquiry and