what information do investigators have that make them believe there may have been some collusion or coordination as the fbi director put it in his public testimony this week? >> john, u.s. officials tell cnn that the fbi has information that includes human intelligence, travel, business and phone records and accounts of in-person meetings that this information is raising the suspicions of the fbi counterintelligence investigators. and one law enforcement official said that the information suggests people connected to the campaign were in contact and it appeared that they were giving the thumbs up to release information when it was ready. that said, there were other officials we spoke to who said it's premature to draw that inference from the information that's been gathered so far since it's largely circumstantial. the bottom line is that the fbi cannot yet prove that collusion actually took place, but the information suggesting collusion is now the focus of this investigation. i should note the fbi would not comment for this story, nor would the white house.