and thank you, donald trump. >> reporter: with her position in the white house, hicks gained access to the world stage, taking part in this intimate gathering with the pope and also the japanese prime minister's state banquet where hicks stole the spotlight in her black tuxedo. her access to the president put her at the center of several key investigations too. on russia, she's been interviewed by special prosecutor robert mueller's team multiple times. just yesterday, she was in front of the house intelligence committee answering questions for about eight hours, admitting that sometimes she was required to tell white lies in the trump administration, but insisting she never lied about substantive matters. >> so much stuff goes through her as the conduit between outsiders and the president that she really sits in a particularly important seat for mueller. >> reporter: and hicks was also involved in the aftermath of don junior's meeting with a russian lawyer at trump tower last year. onboard air force one, helping craft the now infamous press