I would suppose that President Trump voters could point to the TPP (Trans Pacific Partnership) having been quashed by the administration.
Given the effect that the removal of legal protections has had on a number of industries over the past 50 years I am happy to see its defeat.
The United States once had a substantial world class garment industry. That is no longer the case. There are still garment manufactures in the United States but the scale of the industry and of the cloth/fabric industry is reduced.
I find it very difficult to find US manufactured clothing in stores. The discussion of the difficulties that
ATF Reproductions, a US manufacturer of reproduction ww2 era military uniforms, face is illuminating.
Why don't we make everything here? Cost and availability of materials. Many people insist that USA made shouldn't cost more than imported- that's a fantasy. Reality is very different. Military uniforms and equipment manufactured in the US will cost at least double or triple of those made overseas. This is a simple fact and the reason that so few of these products are made here anymore and very few people are willing to pay what it will cost. Compounding this problem, most of raw materials are no longer manufactured in North America at all. The majority of American (and Canadian) fabric mills have gone bankrupt in the past two decades. Even if we wanted to make everything here, we'd need to import the materials.
The majority of fabric mills have gone bankrupt. How pathetic.
Unfortunately the TPP also is said to have contained provisions for the protection of intellectual property. The Chinese have a reputation for copyright infringement - theft. So any good the TPP may have done is also lost.
And at the end of the day, when entire industries have been destroyed it takes time to rebuild. And where is the incentive to do so?