Former Secretary of State and Democratic Presidential hopeful Hillary Clinton (L) shakes hands with Republican US Representative from South Carolina Trey Gowdy  after she testified before the House Select Committee on Benghazi on Capitol Hill in Washington, DC, October 22, 2015. Clinton took the stand to defend her role in responding to deadly attacks on the US mission in Libya, as Republicans forged ahead with an inquiry criticized as partisan anti-Clinton propaganda.   AFP PHOTO/ SAUL LOEB        (Photo credit should read SAUL LOEB/AFP/Getty Images)