paul man for the who served as the chairman of the campaign at one point. and what horowitz found is that the fbi had enough evidence to open this investigation. and so what was done at the beginning was proper. >> the report of course also outlines some very significant errors made by fbi officials. >> that's right, there were 17 total instances in which there were substantial inaccuracies left out of these fisa applications. they were targeting carter page who was an adviser for the campaign. these were four different warrants that were -- got approval from a court. in each case, the fbi failed to update the information for the judges that were reviewing these warrants.