NEW : Benghazi adviser blasts `` the prism of politics '' around Benghazi . `` `` The American people hold all of us accountable who are in responsibility . presidential race has now started , '' senator says . Benghazi committee finds Senate attack was likely preventable . GOP leaders quickly focused their fire on her after the Senate Intelligence Committee concluded that the 2012 assault on the U.S. diplomatic outpost in Benghazi was `` likely preventable '' based on known security shortfalls and prior warnings . Democratic blast Clinton in addendum to report ; committee leader calls that unfair .
NEW : Benghazi adviser blasts `` the prism of politics '' around Benghazi . `` `` The American people hold all of us accountable who are in responsibility . presidential race has now started , '' senator says . Benghazi committee finds Senate attack was likely preventable . Democratic blast Clinton in addendum to report ; committee leader calls that unfair .