Sen. John McCain, R-Ariz., a member of the Senate Foreign Relations Committee, headsto the chamber to advance a bill providing $1 billion in loan guarantees to Ukraine as President Barack Obama meets with U.S. allies in Europe to punish Moscow for its annexation of the Crimean peninsula, at the Capitol in Washington, Monday, March 24, 2014. (AP Photo/J. Scott Applewhite)
**FILE** Sen. John McCain, R-Ariz., asks a question of the panel during a Senate Foreign Relations Committee hearing on Syria on Capitol Hill in Washington, Tuesday, Sept. 3, 2013. (AP Photo/Jacquelyn Martin)