"Each of us has a solemn responsibility to defend the Constitution and to speak the truth," Pompeo said on "This Week." "I said this the other day, I hope those officers who go to Capitol Hill will speak truthfully, that they'll speak completely."
He did, however, call Intelligence Committee Chairman Adam Schiff's investigation a "kangaroo court," and pushed back on information released from closed-door testimonies as "leaked reporting from Democrats."
ABC News has reported on disgruntled career State Department employees, upset over the treatment of Yovanovitch and other perceived lack of support.
"We've done great things for these officers," Pompeo responded. "I see these stories about morale being low, I see things precisely the opposite. I see motivated officers."
Last month, the secretary was subpoenaed as a part of the impeachment inquiry against Trump and he has accused Democrats of attempting to "bully" State Department officials. He was listening to the July call between Trump and Ukrainian President Volodymyr Zelenskiy -- which is at the center of the complaint -- ABC News reported earlier this month.
When asked Sunday if he would testify as a part of the inquiry if called to do so, Pompeo said "I've said all along, I'll do everything I'm required to do by law."
Kaynak:Abcnews