US President Donald Trump shakes hands with US Army Lieutenant General H.R. McMaster (L) as his national security adviser at his Mar-a-Lago resort in Palm Beach, Florida, on February 20, 2017. / AFP / NICHOLAS KAMM (Photo credit should read NICHOLAS KAMM/AFP/Getty Images)
US President Donald Trump (C) walks away after naming US Army Lieutenant General H.R. McMaster (L) as his national security adviser and Keith Kellogg (R) as McMaster's chief of staff at his Mar-a-Lago resort in Palm Beach, Florida, on February 20, 2017. / AFP / NICHOLAS KAMM (Photo credit should read NICHOLAS KAMM/AFP/Getty Images)
US Secretary of State Rex Tillerson delivers remarks August 1, 2017, from the briefing room of the US State Department in Washington, DC. / AFP PHOTO / PAUL J. RICHARDS (Photo credit should read PAUL J. RICHARDS/AFP/Getty Images)
Anthony Scaramucci White House communcations director arrives at Long Island MacArthur Airport with US President Donald Trump to deliver remarks on law enforcement at Suffolk Community College in Ronkonkoma, New York, on July 28, 2017. / AFP PHOTO / NICHOLAS KAMM (Photo credit should read NICHOLAS KAMM/AFP/Getty Images)
WASHINGTON, DC - JULY 20: (L-R) Deputy Attorney General Rod Rosenstein, U.S. Attorney General Jeff Sessions, Acting FBI Director Andrew McCabe other law enforcement officials hold a news conference to announce an 'international cybercrime enforcement action' at the Department of Justice July 20, 2017 in Washington, DC. President Donald Trump said Wednesday in an interview with the New York Times that he never would have appointed Sessions had he known Sessions would recuse himself from overseeing the investigation into Russian interference in the 2016 presidential election. "Sessions should have never recused himself, and if he was going to recuse himself, he should have told me before he took the job and I would have picked somebody else," Trump said. (Photo by Chip Somodevilla/Getty Images)
CLEVELAND, OH - JULY 17: Paul Manafort (R), campaign manager for Republican presidential candidate Donald Trump, is interviewed by journalist John Dickerson (L) on the floor of the Republican National Convention at the Quicken Loans Arena July 17, 2016 in Cleveland, Ohio. The Republican National Convention begins tomorrow. (Photo by Win McNamee/Getty Images)
BUDAPEST, HUNGARY - FEBRUARY 17: Russian President Vladimir Putin (C) and Hungarian Prime Minister Viktor Orban (R) arrive to speak to the media following lengthy talks at Parliament on February 17, 2015 in Budapest, Hungary. Putin is in Budapest on a one-day visit, his first visit to an EU-member country since he attended ceremonies marking the 70th anniversary of the D-Day invasions in France in June, 2014. (Photo by Sean Gallup/Getty Images)
LANGLEY, UNITED STATES: A janitor mops the floor at the headquarters of the Central Intelligence Agency 03 March, 2005 in Langley, Virginia. AFP PHOTO/ Brendan SMIALOWSKI (Photo credit should read BRENDAN SMIALOWSKI/AFP/Getty Images)
WASHINGTON, DC - JANUARY 22: U.S. President Donald Trump (C) shakes hands with James Comey, director of the Federal Bureau of Investigation (FBI), during an Inaugural Law Enforcement Officers and First Responders Reception in the Blue Room of the White House on January 22, 2017 in Washington, DC. Trump today mocked protesters who gathered for large demonstrations across the U.S. and the world on Saturday to signal discontent with his leadership, but later offered a more conciliatory tone, saying he recognized such marches as a "hallmark of our democracy." (Photo by Andrew Harrer-Pool/Getty Images)
US Speaker of the House Paul Ryan walks to a briefing for US House members at the US Capitol in Washington, DC, June 14, 2017, following a shooting incident targeting Congressmen in nearby Virginia.
Several people including a top Republican congressman were wounded in a Washington suburb early Wednesday morning when a gunman opened fire as they practiced for an annual baseball game between lawmakers. / AFP PHOTO / SAUL LOEB (Photo credit should read SAUL LOEB/AFP/Getty Images)
WASHINGTON, DC - FEBRUARY 09: U.S. President Donald Trump meets with members of the airline industry at the White House February 9, 2017 in Washington, DC. Trump held a listening session with the group to advance issues relative to the airline industry. (Photo by Win McNamee/Getty Images)
WASHINGTON, DC - JUNE 13: U.S. Attorney General Jeff Sessions testifies before the Senate Intelligence Committee on Capitol Hill June 13, 2017 in Washington, DC. Sessions recused himself from the Russia investigation and he was later discovered to have had contact with the Russian ambassador last year despite testifying to the contrary during his confirmation hearing. (Photo by Chip Somodevilla/Getty Images)
An unidentified rocket is displayed during a military parade marking the 105th anniversary of the birth of late North Korean leader Kim Il-Sung in Pyongyang on April 15, 2017.
North Korean leader Kim Jong-Un on April 15 saluted as ranks of goose-stepping soldiers followed by tanks and other military hardware paraded in Pyongyang for a show of strength with tensions mounting over his nuclear ambitions. / AFP PHOTO / Ed JONES (Photo credit should read ED JONES/AFP/Getty Images)
WASHINGTON, DC - JUNE 07: Director of National Intelligence Daniel Coats testifies before the Senate Intelligence Committee in the Hart Senate Office Building on Capitol Hill June 7, 2017 in Washington, DC. The intelligence and security officials testified about re-authorization of Section 702 of the Foreign Intelligence Surveillance Act, which is the law the NSA uses to track emails and phone calls of non-US citizens. (Photo by Chip Somodevilla/Getty Images)
Former FBI Director James Comey leaves after testifying before the US Senate Select Committee on Intelligence hearing on Capitol Hill in Washington, DC, June 8, 2017. / AFP PHOTO / SAUL LOEB (Photo credit should read SAUL LOEB/AFP/Getty Images)