>> isn't it a fact that michael flynn lied to the fbi? >> i can't reveal the internal fbi investigation, senator, even though that part would not technically be classified, it's an ongoing investigation and i can't reveal that. >> ms. yates, do you have any evidence, are you aware of any evidence that would suggest in the 2016 campaign anybody in the trump campaign colluded with the russian government or intelligence services in an improper fashion? >> and senator, my answer to that question would require me to reveal classified information, and so i can't answer that. >> all that means is, it's classified. it's an ongoing investigation. i can't get into it, and so we don't know. but if you were someone who was not only read in on this investigation, if you were cleared to look at the highest