Senate Foreign Relations Committee member Sen. John McCain, R-Ariz., reacts after the committee voted to accept his amendment as they consider the authorization for use of military force in Syria during a business meeting, Wednesday, Sept. 4, 2013, on Capitol Hill in Washington. (AP Photo/Susan Walsh)
Sen. Rand Paul, Kentucky Republican, listens as Secretary of State John F. Kerry answers Mr. Paul's question on Capitol Hill in Washington on Tuesday, Sept. 3, 2013, as Mr. Kerry testifies at a Senate Foreign Relations Committee hearing on Syria. (AP Photo/Jacquelyn Martin)
Sen. John McCain, Arizona Republican, asks a question during a Senate Foreign Relations Committee hearing on Syria on Capitol Hill in Washington on Tuesday, Sept. 3, 2013. (AP Photo/Jacquelyn Martin)
Secretary of State John Kerry, left, talks to Defense Secretary Chuck Hagel on Capitol Hill in Washington, Tuesday, Sept. 3, 2013, prior to the start of the Senate Foreign Relations Committee hearing on Syria where they testified. (AP Photo/Jacquelyn Martin)
From left, Joint Chiefs Chairman Gen. Martin Dempsey, Secretary of State John Kerry, and Defense Secretary Chuck Hagel, appear before the Senate Foreign Relations Committee to advance President Obama's request for congressional authorization for military intervention in Syria, a response to last month's alleged sarin gas attack in the Syrian civil war, on Capitol Hill in Washington, Tuesday, Sept. 3, 2013. (AP Photo/J. Scott Applewhite)
**FILE** Sen. Robert Menendez, New Jersey Democrat and chairman of the Senate Foreign Relations Committee, speaks during a committee hearing on Embassy Security on Capitol Hill in Washington on July 16, 2013. (Associated Press)
State Department security official Gregory B. Starr testifies at a Senate Foreign Relations Committee hearing on embassy security on Capitol Hill in Washington on Tuesday, July 16, 2013. (AP Photo/Jacquelyn Martin)