Here’s a list of where Trump’s tariff threats — and trade deals — stand Finding it hard to track the latest U.S. trade policy state of play? While any revenue can help the government fiscally, tariff revenue will barely make a dent in that total. But the more things are made here, the fewer imports — reducing tariff revenue. If Apple were to find ways to source and assemble all of its iPhones domestically, those iPhones would generate zero tariff revenue. And tariff revenue projections also hinge on a looming court decision.