WASHINGTON, DC - SEPTEMBER 21: House Judiciary Committee members (L-R) Rep. Trent Franks (R-AZ), Rep. Trey Gowdy (R-SC) and Rep. Jim Jordan (R-OH) before heaing testimony from Internal Revenue Service Commissioner John Koskinen during a hearing in the Rayburn House Office Building on Capitol Hill September 21, 2016 in Washington, DC. Despite the lack of evidence against him, Koskinen is facing impeachment threats from conservatives in the House of Representatives for his role in the destruction of computer backups containing thousands of emails sought by Congress in its investigation of political targeting. (Photo by Chip Somodevilla/Getty Images)

WASHINGTON, DC - SEPTEMBER 21: Sen. Ben Cardin (D-MD), (L), and Sen. Dick Durbin (D-IL), participate in a discussion with other members of Congress on the state of voting rights in America, on Capitol Hill September 21, 2016 in Washington, DC. (Photo by Mark Wilson/Getty Images)

WASHINGTON, DC - SEPTEMBER 21: Rep. John Lewis (D-GA), participates in a discussion with other members of Congress on the state of voting rights in America, on Capitol Hill September 21, 2016 in Washington, DC. (Photo by Mark Wilson/Getty Images)

WASHINGTON, DC - SEPTEMBER 21: Sen. Kirsten Gillibrand (D-NY), (R), hosts a discussion with Rep. G.K. Butterfield (D-NC), (L), Rep. James Clyburn (D-SC), (2nd L), Rep. John Lewis (D-GA), (C), and other members of Congress, on the state of voting rights in America, on Capitol Hill September 21, 2016 in Washington, DC. Also pictured are (Photo by Mark Wilson/Getty Images)

WASHINGTON, DC - SEPTEMBER 21: Rep. John Lewis (D-GA), participates in a discussion with other members of Congress on the state of voting rights in America, on Capitol Hill September 21, 2016 in Washington, DC. (Photo by Mark Wilson/Getty Images)

WASHINGTON, DC - SEPTEMBER 21: Sen. Kirsten Gillibrand (D-NY), hosts a discussion with members of Congress, on the state of voting rights in America, on Capitol Hill September 21, 2016 in Washington, DC. (Photo by Mark Wilson/Getty Images)

WASHINGTON, DC - SEPTEMBER 21: Sen. Kirsten Gillibrand (D-NY), (3rd L), hosts a a discussion with members of Congress on the state of voting rights in America, on Capitol Hill September 21, 2016 in Washington, DC. Also pictured are Rep. G.K. Butterfield (D-NC), (L), and Rep. James Clyburn (D-SC), (2nd L), Rep. John Lewis (D-GA), (C), Sen. Ben Cardin (D-MD), (R), and Sen. Dick Durbin (D-IL), (2nd R). (Photo by Mark Wilson/Getty Images)

WASHINGTON, DC - SEPTEMBER 21: Rep. John Lewis (D-GA), (L), and Sen. Ben Cardin (D-MD) participate in a discussion with other members of Congress on the state of voting rights in America, on Capitol Hill September 21, 2016 in Washington, DC. (Photo by Mark Wilson/Getty Images)