Secretary of State Hillary Rodham testifies on Capitol Hill in Washington, Wednesday, Jan. 23, 2013, before the Senate Foreign Relations Committee hearing on the deadly September attack on the U.S. diplomatic mission in Benghazi, Libya, that killed Ambassador J. Chris Stevens and three other Americans. (Associated Press) ** FILE **
Secretary of State John Kerry listens to opening remarks on Capitol Hill in Washington, Thursday, Nov. 21, 2013, prior to testifying before the Senate Foreign Relations Committee hearing to examine the Convention on the Rights of Persons with Disabilities. (AP Photo/Jacquelyn Martin)
** FILE ** Secretary of State John Kerry listens on Capitol Hill in Washington, Thursday, Nov. 21, 2013, during a Senate Foreign Relations Committee. (AP Photo/Jacquelyn Martin)
Sen. Bob Corker, R-Tenn., ranking Republican on the Senate Foreign Relations Committee, speaks to members of the media outside the West Wing of the White House in Washington, Tuesday, Nov. 19, 2013, following a meeting with President Barack Obama. The President met with chairmen, ranking members, as well as other members of the Senate Banking Committee, Senate Foreign Relations Committee, Senate Armed Services Committees, and Senate Select Committee on Intelligence regarding Iran. (AP Photo/Pablo Martinez Monsivais)