
President Trump is deploying a tariff strategy rarely used by previous presidents. In his first week in office, President Trump tried to browbeat governments across the world into ending the flow of drugs into America, accepting planes full of deported migrants, halting wars and ceding territory to the United States. For all of them, he deployed a common threat: Countries that did not meet his demands would face stiff tariffs on products they send to American consumers. Mr. Trump has long wielded tariffs as a weapon to resolve trade concerns....