specifically what this ukraine business is all about, this op-ed that was written by then -ambassador. and what they both said is don't confuse rooting for an outcome with undermining and interfering in the election. that's what this is all about. >> one was an intelligence operation, a top-down attack by the kgb on the election. >> the other was an op-ed. >> michael, thank you for being with us. i think you'll be watching the lawyering very carefully today. it'll be interesting to see how they treat each other. >> true. in just a few hours, one of the men at the center of the impeachment inquiry, president zelensky will meet russia's president vladimir putin for the first time. nick paton walsh is live in paris where this will happen with what will be a remarkable and notable meeting. >> reporter: yeah, john. we are in fact hearing from the