Here's Why Trade Tariffs Are Back In Vogue

There was a time in the not-too-distant past where more free trade was widely considered to be a good thing. Donald Trump, as US President, had a major hand in reviving the use of tools like trade tariffs, but they've continued to be used under Joe Biden too. Bloomberg's Trade Tsar Brendan Murray joins Stephen Carroll to discuss the past, present and future of this key instrument of international trade. 

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