Remember the arguments from liberals about how massive immigration, both legal and illegal, was good for the country? Well, a certain publication is now questioning that proposition specifically on the grounds that it appears that the curtailment of immigration during the Trump administration seems to have the effect of raising blue collar wages. The most surprising thing about this assertion is that the source is one which  you would associate with being friendly towards Trump. It was The Economist which was so hostile toward Trump that shortly after his inauguration, it featured a...