I’m glad you asked, it should’ve sunk her (and Obama, too).
Ambassador Stevens was the man tortured to death in Benghazi. Hillary and Obama allowed it to happen, we now know from documents that were released:

Benghazi story Hillary Clinton doesn’t want you to know

That by itself should be enough to ruin any campaign.
She acted like she didn’t have to answer any ‘stinking questions’, lol, about this man’s death, and laughed like a hyena during the questioning:

The e-mails by themselves would earn anyone else at least one year in prison under NARA.