Trump’s Tariffs Have Sown Uncertainty. That Might Be the Point.

Since taking office, President Trump and his advisers have explained the president’s aggressive economic approach to tariffs with a litany of conflicting ideas. Other countries are “ripping off” America and need to be stopped. The United States is fighting a drug war with Canada, Mexico and China. Tariffs will help pay down the nation’s $36 trillion debt load.The messaging hodgepodge comes as the U.S. economy shows signs of strain in response to Mr. Trump’s steep tariffs on Canada, Mexico and China and as he prepares to enact “reciprocal” tariffs on imports from around the world on April 2.The tariffs have...