classified documents. joining us right now is cnn justice reporter laura jarrett. so do we know why the doj with held these documents? >> yes, fred, i obtained documents that says that the justice department made it quite clear to chairman nunes that they were not going to able to turn over -- could endanger the lives of sources, could jeopardize an ongoing investigation. now nunes says he continues to need these documents as he continues his own extradition on the russia investigation. but it will be interesting to see what happens here, we have seen how these fights play out, where he demands documents, the justice department relents and turns them over. but it appears that the doj really digs its heels in. and cnn has reported that the justice department has demanded these documents before and