The Trump administration’s tariff-led approach to trade policy has had varying success. Imports of solar panels have begun to increase despite tariffs, while steel and aluminum duties have been largely successful in reducing imports. The combination of tariffs and quotas in the case of washing machines have both cut imports and driven leading overseas firms to build U.S. factories. U.S. imports of washing machines fell 45.7% year over year in the Jan. 1 to Jul. 31 period in 2019 and were 38.1% lower than the same period in 2015.The major importers have followed different import strategie...