Yes, she has admitted it several times already. It's not her fault if you don't pay attention.
I'd take that a little more seriously if she hadn't voted for Iran war (the Bush administration declined to take advantage of the warmongering that Clinton allowed them there) and supported arming the "moderate" Syrian rebels, going as far as to criticize Obama for that. Her actions have led to the creation of ISIS, and it's not just her vote for the Iraq war that she made without reading the intelligence report like the chair of Senate intelligence commite urged everyone to. Of course Bob Graham voted no.