Trump has argued that tariffs are an effective tool to incentivize manufacturing goods in the U.S. as well as protecting jobs and encouraging consumers to purchase domestic-made products. He’s also leveraged tariff increases to address the flow of illicit drugs and illegal immigrants across U.S. borders.

President Donald Trump’s trade war with the world came into force at midnight, with sweeping tariffs hitting scores of America’s commercial partners. But what happens next is profoundly unclear. The two critical questions: Are the tariffs working?