These days, numerous leftist intellectuals ply their trade in the following manner: They hunt for anything that might be construed to show that their adversaries were bad people (usually racist) and therefore their body of work is tainted. That’s easier than actually confronting rival arguments.

In this article in City Journal, historian Phil Magness points to one such case, namely the way historian Quinn Slobodian misrepresents the views of Ludwig von Mises. Von Mises was a consistent proponent of liberalism in the real meaning of the word. He argued that nearly........

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