WASHINGTON, DC - MAY 11:  Acting FBI Director Andrew McCabe testifies before the Senate Intelligence Committee with the other heads of the U.S. intelligence agencies in the Hart Senate Office Building on Capitol Hill May 11, 2017 in Washington, DC. The intelligence officials were questioned by the committee during the annual hearing about world wide threats to United States' security.  (Photo by Alex Wong/Getty Images)
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WASHINGTON, DC - MAY 11:  Acting FBI Director Andrew McCabe testifies before the Senate Intelligence Committee with the other heads of the U.S. intelligence agencies in the Hart Senate Office Building on Capitol Hill May 11, 2017 in Washington, DC. The intelligence officials were questioned by the committee during the annual hearing about world wide threats to United States' security.  (Photo by Alex Wong/Getty Images)
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White House Deputy Press Secretary Sarah Huckabee Sanders speaks during the daily press briefing in the Brady Press Briefing Room at the White House in Washington, DC, May 10, 2017.
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NEW YORK, NY - NOVEMBER 15: Don McGahn, general counsel for the Trump transition team, gets into an elevator in the lobby at Trump Tower, November 15, 2016 in New York City. President-elect Donald Trump is in the process of choosing his presidential cabinet as he transitions from a candidate to the president-elect. (Photo by Drew Angerer/Getty Images)
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WASHINGTON, DC - JUNE 23:  FBI Director James Comey participates in a news conference on child sex trafficking, at FBI headquarters, June 23, 2014 in Washington, DC. Director Comey said that 168 juveniles have been recovered in a nationwide operation targeting commercial child sex trafficking.  (Photo by Mark Wilson/Getty Images)
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WASHINGTON, DC - MARCH 07:  Deputy U.S. Attorney General nominee Rod Rosenstein is sworn in prior to testimony before the Senate Judiciary Committee March 7, 2017 in Washington, DC. During the hearing, Democratic senators pressed Rosenstein to appoint a special prosecutor in an ongoing federal inquiry into Russian influence in the U.S. presidential election.  (Photo by Win McNamee/Getty Images)
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WASHINGTON, DC - FEBRUARY 03:  (L-R) White House Senior Counselor for Economic Initiatives Dina Powell, Ernst & Young CEO Mark Weinberger and Ivanka Trump attend a policy forum with U.S. President Donald Trump in the State Dining Room at the White House February 3, 2017 in Washington, DC. Leaders from the automotive and manufacturing industries, the financial and retail services and other powerful global businesses were invited to the meeting with Trump, his advisors and family.  (Photo by Chip Somodevilla/Getty Images)
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NEW YORK, NY - NOVEMBER 17: Retired Lt. Gen. Michael Flynn gestures as he arrives at Trump Tower, November 17, 2016 in New York City. President-elect Donald Trump and his transition team are in the process of filling cabinet and high level positions for the new administration. (Photo by Drew Angerer/Getty Images)
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Commander of the U.S. Central Command Gen. James N. Mattis testifies before the Senate Armed Services Committee for a review of the defense authorization request for fiscal year 2014 and the future years of the defense program on Capital Hill, Washington, D.C., Tuesday, March 5, 2013
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