well at the hearing we have on the registration -- what do you call it? federal agent registration act. okay. >> reporter: so when is that, and has he agreed to testify in open session? >> well, i don't know whether he just -- we're going to invite him, and if he doesn't invite, then under our new rules, senator feinstein and i have the power to issue a subpoena. >> reporter: so, threatening a es subpoena there and later he said that hearing is going to be next week. this is significant, because we have not heard from paul manafort in the middle as this controversy has grown, and we know that the senate and house intelligence committees, two separate committees that are investigating this russia issue, do, they both want to talk to paul manafort. they've exchanged documents with him. he provided documents to the committee, but he doesn't want to talk to them, but he's wanted to talk to them in a classified session, so the question is if