Facebook CEO Mark Zuckerberg surrounded by press photographers around the world before testifying at the US Senate Judiciary and Commerce Committees Joint Hearing on Capitol Hill in Washington D.C. on Apr 10, 2018.

Deputy Attorney General Rod Rosenstein heads to the Sensitive Compartmented Information Facility in the Capitol building for a secured briefing for US Congressional Leaders on the Russian Investigation on Capitol Hill in Washington D.C. on May 24, 2018.

President Donald Trump salutes a Marine before boarding the Marine One leaving for vacation in Bedminster, New Jersey, South Lawn of the White House, in Washington, D.C. on Aug 4, 2017.

CIA Director nominee Gina Haspel board the elevator traveling around on Capitol Hill meeting with various senators ahead of her confirmation hearing this week, in Washington D.C. on May 7, 2018.

A scar is seen on U.S. Senator John McCain's eyebrow as he leaves the Capitol following a procedural vote to open debate on the GOP heath care plan on Capitol Hill in Washington, D.C. on Jul. 25, 2017. Senator McCain returned to the Capitol for the healthcare vote, after a brief absence recovering from a surgery to remove a blood clot in his forehead due to the recently diagnosed glioblastoma.

President Donald Trump holds a note card during a listening session on school safety at the White House in Washington D.C. on Feb 21, 2018.

US Attorney General Jeff Sessions speaks during a press conference regarding new opioid drug policy at the Department of Justice in Washington D.C. on Feb 27, 2018.

U.S. Senator Bernie Sanders (I-Vt.) asks for directions to the Sensitive Compartmented Information Facility to attend a closed intelligence briefing on Islamic State on Capitol Hill, Washington, D.C. July 19, 2017.

President Donald Trump waves to the media (shields the spot light with his hand) as he walks across the South Lawn of the White House to board Marine One departing for Joint Base Andrews, Washington, D.C. on Jan 24 2018.

Former Secretary of State Henry Kissinger testifies in front of the Senate Armed Services Committee during the Hearing on 'Global Challenges and U.S. National Security Strategy' on Capitol Hill in Washington D.C. on Jan 25, 2018.

(Former) Secretary of State Rex Tillerson waits behind curtains before delivering opening remarks during the Ministerial on Trade, Security, and Governance in Africa at Department of State in Washington D.C. on Nov 17, 2017.

US Capitol police switch shifts during sunset on Capitol Hill in Washington D.C. on Feb 8, 2018.

President Donald Trump delivers a speech while hosting the 2018 US Winter Olympics Team at the White House in Washington D.C. on Apr 27, 2018.