FBI Director James Comey (L) speaks with US Representative Glenn Grothman after testifuing at a House Oversight and Government Reform Committee 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

WASHINGTON, DC - JULY 07: U.S. State Department Inspector General Steve Linick (L) and I. Charles McCullough III (R), inspector general of the intelligence community, testify during a hearing before House Oversight and Government Reform Committee July 7, 2016 on Capitol Hill in Washington, DC. The committee held a hearing "Oversight of the State Department," focusing on the FBI's recommendation not to prosecute Democratic presidential candidate Hillary Clinton for maintaining a private email server during her time as Secretary of State. (Photo by Alex Wong/Getty Images)

WASHINGTON, DC - JULY 07: I. Charles McCullough III, inspector general of the intelligence community, testifies during a hearing before House Oversight and Government Reform Committee July 7, 2016 on Capitol Hill in Washington, DC. The committee held a hearing "Oversight of the State Department," focusing on the FBI's recommendation not to prosecute Democratic presidential candidate Hillary Clinton for maintaining a private email server during her time as Secretary of State. (Photo by Alex Wong/Getty Images)

WASHINGTON, DC - JULY 07: FBI Director James Comey is sworn in during a hearing before House Oversight and Government Reform Committee July 7, 2016 on Capitol Hill in Washington, DC. The committee held a hearing "Oversight of the State Department," focusing on the FBI's recommendation not to prosecute Democratic presidential candidate Hillary Clinton for maintaining a private email server during her time as Secretary of State. (Photo by Alex Wong/Getty Images) *** BESTPIX ***

WASHINGTON, DC - JULY 07: FBI Director James Comey (2nd L) leaves after a hearing before House Oversight and Government Reform Committee July 7, 2016 on Capitol Hill in Washington, DC. The committee held a hearing "Oversight of the State Department," focusing on the FBI's recommendation not to prosecute Democratic presidential candidate Hillary Clinton for maintaining a private email server during her time as Secretary of State. (Photo by Alex Wong/Getty Images)

CAPTION CORRECTION This is to correct the caption in image 545327214 . Pictured is Ron Johnson (R-WI) WASHINGTON, DC - JULY 07: Sen. Ron Johnson (R-WI) leaves a meeting with Republican presidential candidate Donald Trump at the Republican National Senatorial Committee on July 7, 2016 in Washington, DC. Mr. Trump and the senators met in an attempt to unify ahead of the upcoming Republican national convention. (Photo by Zach Gibson/Getty Images)

WASHINGTON, DC - JULY 07: Sen. Jerry Moran (R-KS) leaves a meeting with Republican presidential candidate Donald Trump at the Republican National Senatorial Committee on July 7, 2016 in Washington, DC. Mr. Trump and the senators met in an attempt to unify ahead of the upcoming Republican national convention. (Photo by Zach Gibson/Getty Images)

WASHINGTON, DC - JULY 07: FBI Director James Comey listens to an aide during a hearing before House Oversight and Government Reform Committee July 7, 2016 on Capitol Hill in Washington, DC. The committee held a hearing "Oversight of the State Department," focusing on the FBI's recommendation not to prosecute Democratic presidential candidate Hillary Clinton for maintaining a private email server during her time as Secretary of State. (Photo by Alex Wong/Getty Images)