Newly leaked emails show Clinton aides scrambling "to clean this up."
Some also say the issue makes them worry about her decision-making if she becomes president.
"This is somebody who has served her country for four years as secretary of state, and did an outstanding job."
It wasn't about a hankering for some ground-up carp.
An October hearing before the House Benghazi Committee is eyed as a potential break point from months of bad headlines.
Former Massachusetts Gov. Mitt Romney, the 2012 GOP presidential nominee, came face-to-face with "The Tonight Show" host