This Krugman retrospective on trade, inequality, and politics is really really good. Need to read it a couple times to fully digest.
bloomberg.com/opinion/articl…
bloomberg.com/opinion/articl…
This really is the key part IMO. I find it odd that while referencing the trade deficit, he doesn't discuss the role of the USD in all this. The 97/98 EM crisis + late 90s tech boom led to absurdly strong USD. Coupled with China into WTO, and you had a meaningful one time shock. 
And to connect it to politics, we were ignoring the impact of hyper concentrated shocks and their effects because we were looking at aggregates.
As someone who learned economics at the tail end of the Washington Consensus, which was heavily influenced on trade matters by Krugman, and others, my views meaningfully evolved on this subject
This thread, from shortly after Trump was elected, was thinking through the pricing of social stability into economic welfare calculations. The costs of the hypershock to specific industries/locations was too great, and we are dealing with the result.
