The question is how could this de facto next president not have a position on the issue?
Of course she should have a position. Just not the one Warren wants her to have.
Iiiisss she going to enunciate it?
I hope so, but there's a time and a place for it, and it's not the kind of thing that should be done in a thirty-second soundbite.
If she just says "Warren is wrong on this issue, look at the IGM survey," it won't play well.
The issue is somewhat complicated. While it's nearly a sure thing that promoting international trade will work out well for the U.S. (and its trade partners) on the whole, that position takes a lot of patient explaining, and even then a lot of people won't get it (as Krugman demonstrates in the essay I linked to a few posts ago). Moreover, even
if people generally accept that the Trans-Pacific Partnership (and fast-track authority for it) will benefit the U.S. on the whole, Americans often care less about the U.S. on the whole than they do about their own families, and the TPP (like everything) will have winners and losers. It may be appropriate for the government to try to soften the fall for the losers -- another topic that is complicated and will require a lot of explanation.
And even if Hillary articulates her policy in a 50-page position paper appropriately discussing all of the nuances involved, it will be misrepresented in one-sentence headlines because that's just what political journalists do.
So I don't know the best way -- the best time and place -- for her to enunciate her position on this issue. But I don't blame her for being cautious about it.