You bet Ash Carter "opened a Pandora's box"!...he's not of Washington, and apparently not up on the ways of Washington where you never lay out the truth for the Am public to digest - rather just keep saying "we're making progress".
As dumb as I believe Bush III is, and I do believe he's not very bright, he is up-front in his comments about staying in Iraq to "finish the job" - as if that's even remotely possible! Speaking to the media can get him in trouble, but at least people know where he stands. On the other hand, HRC is conducting an invitation-only campaign and doesn't speak to the media - not about Iraq or her current views on the TPP Agreement.
The U.S. can stay in Iraq for another 100 years and we won't change a thing - eventually we'll abandon the ME just as we did Viet Nam, and the ME will get on with how they've lived for thousands of years.