wondering if you're hearing anything from the white house on this new reporting about other white house officials who corroborate the whistle-blower's complaint? >> reporter: well, don, this is what's interesting because over the last several days before we really knew the details of this whistle-blower's complaint, you heard from the white house, from president trump and his top officials that they said they believed this whistle-blower was someone who was partisan, potentially disgruntled, someone who was essentially out to get the president, potentially a career employee. and now today as we're learning more about this whistle-blower's identity, as we're seeing this complaint start to take shape, you're seeing that the inspector general interviewed other white house officials who were involved in this, who apparently were giving some kind of a heads-up to the person who eventually filed this complaint because what you heard from the president even today during that press conference was that this person didn't have firsthand knowledge of the call the president had with the ukrainian president or any of the other events that are detailed in this whistle-blower's complaint. but based on what we're learning tonight, based on this new