AdvertisementEx-Pompeo Aide Is Latest State Department Official To Talk In Impeachment InquiryOctober 16, 2019Brakkton BookerBarbara CampbellfacebookEmailMichael McKinley (center), former senior adviser to Secretary of State Mike Pompeo, arrives to testify at a closed-door deposition as part of the Democratic-led impeachment inquiry into President Trump. (Reuters)