FBI Director James Comey (R) greets US Representative Jason Chaffetz (R), chairman of a House Oversight and Government Reform Committee, and US Representative Elijah Cummings before before testifying at a hearing on Capitol Hill in Washington, DC, on July 7, 2016. Comey is testifying on his July 5 recommendation that no charges be brought over US Democratic presidential candidate Hillary Clinton's use of a private email server while secretary of state, saying the investigation does not support a criminal prosecution. / AFP PHOTO / YURI GRIPASYURI GRIPAS/AFP/Getty Images