questions about rudy giuliani's involvement in all this. what are you reading? >> reporter: yes. very concerned about the role rudy giuliani was pushing forward, what he calls a campaign of lies. in part the push to get rid of the former ukraine ambassador marie yovanovitch, someone who raised concerns about giuliani's efforts himself to pursue investigations, push ukraine to invest gate the president's political rivals and says he was cut out as a person of policy for the state department, says he was cut out in favor of his parallel foreign policy effort rudy giuliani was a part of. he says this in reference to what his concerns are saying mr. giuliani at that point had been carrying on a campaign for several months, full of lies and incorrect information about ambassador yovanovitch. this was a continuation of his campaign of lies.