In case you didn’t see it, late Friday afternoon President Trump posted an op-ed piece on the Wall Street Journal website entitled: "My Tariffs Have Brought America Back," and it appeared in the Saturday morning print edition. I don’t think people focused on it because everybody was talking about Mr. Trump’s superb nomination of Kevin Warsh to be Fed chairman. Yet it’s worth revisiting his piece, which is kind of a rebuttal to all the criticisms by the Wall Street Journal Editorial Board, regarding Mr. Trum ...