WASHINGTON, DC - JUNE 21: Former FBI Director Robert Mueller (C) is surrounded by security and staff as he leaves a meeting with senators at the U.S. Capitol June 21, 2017 in Washington, DC. Special Counsel overseeing the investigation into Russian interference in the 2016 presidential elections, Mueller was on Captiol Hill to meet with members of the Senate Judiciary Committee. (Photo by Chip Somodevilla/Getty Images)
