them to operate and assumes they're going to enforce the labor sections of the agreement, which is supposed to be better for workers in mexico in terms of their labor and conditions. in turn, the theory goes, will limit out sourcing and improve the industrial base in the united states. it doesn't make a lot of sense that would be the case. and there are other things in the agreement that are positive. it's a mixed bag. but an agreement that the enforcement is sketchy on isn't really with worth the paper it's printed on, if the whole point is to improve labor conditions and have that rising tide lift all boats throughout north america. >> dave dan, executive editor of "the american prospect". still ahead donald trump jr. gets a boost in book sales. the bulk orders by republican groups. rders by republican