secretary of energy perry. white house chief of staff mick mulvaney. and i subsequently learned mr. giuliani. the odd push to make president zelensky publicly commit to investigate and alleged interference in the 2016 election showed how the official foreign policy of the united states was under cut by the irregular efforts let by mr. giuliani. >> he testified alistening side deputy assistant secretary of state who found rudy giuliani actions in ukraine deeply troubling. >> what interest do you believe he was promoting? >> i believe he was looking to dig up political dirt against a potential rival in the next election cycle. >> i agree with mr. kent. >> two days later former ambassador to ukraine yovanovitch. sat down for the questioning. she was fired from her post in may and accused rudy giuliani of being behind her outser. trump criticized yovanovitch.