The most a progressive can responsibly call for, I’d argue, is a standstill on further deals, or at least a presumption that proposed deals are guilty unless proved innocent.
The hard question to deal with here is the Trans-Pacific Partnership, which the Obama administration has negotiated but Congress hasn’t yet approved. (I consider myself a soft opponent: It’s not the devil’s work, but I really wish President Obama hadn’t gone there.) People I respect in the administration say that it should be considered an existing deal that should stand; I’d argue that there’s a lot less U.S. credibility at stake than they claim.
The larger point in this election season is, however, that politicians should be honest and realistic about trade, rather than taking cheap shots. Striking poses is easy; figuring out what we can and should do is a lot harder. But you know, that’s a would-be president’s job.