repeated attacks shooting down the suggestion that the fbi's judgment is clouded over the firing of the former fbi director james comey. he says the fact is we were building to this point for months before jim was fired. we had several cases already open under the umbrella investigation of the russia case and the concern about the president and whether or not he posed a national security threat that we should be investigating have been building for some time. for some perspective here, someone with experience, josh campbell, former fbi supervisory special agent. this goes to an essential question. you have the president and his supporters describing this as a coup inside the government. you have mccabe saying we had evidence here. the bureau did at least to investigate whether the president was somehow involved in russia interference and this case was building for months. for someone who was inside the fbi, what kind of evidence would the fbi need to take this step