we don't know which if any of these the inspector general told to. and found it credible. you told us you have to reason to believe otherwise, am i right? >> i had no reason to doubt a career inspector general lawyer in his determination on whether or not it was credible. that is something for michael to determine. >> and let me ask you this. the whistle-blower also says over the past four months more than half a dozen u.s. officials informed me of various facts related to this effort to seek foreign interference. you would agree we should speak to those half a dozen u.s. officials, would you not? >> i think that you have all the material that the committee needs and i think it's up to the committee how they think they need to proceed. >> i'm asking your opinion, is the head of our intelligence agencies, do you think we should talk to those other people and find out whether the whistle-blower is right? >> my responsibility was to get you the whistle-blower letter, the complaint, and the other information released. i have done my responsibility. that is on the shoulders of the