The Left discovers Milton Friedman

After President Donald Trump imposed broad tariffs, some of his left-wing critics began quoting economists like Milton Friedman, who adamantly believed in unilateral free trade.

Friedman preferred that our trading partners refrain from imposing barriers on goods imported from the United States. He said: “We would be benefited by dispensing with our tariffs even if other countries did not. We would of course be benefited even more if they reduce theirs but our benefiting does not require...