How a tariff on Canadian lumber could backfire on the U.S.
Clip: 04/25/2017 | 7m 18s
President Trump’s decision to impose tariffs on some lumber imported from Canada has escalated tensions between the two countries, drawing a firm response from Canadian Prime Minister Justin Trudeau. William Brangham speaks with The Wall Street Journal's Greg Ip about Mr. Trump's recent trade moves and what they say about his emerging trade policy.
Aired: 04/25/17
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