Your Weekly Constitutional

Donald Trump calls himself Tariff Man, and he certainly seems to enjoy waging his trade wars. Has he exceeded his constitutional authority? What, precisely, is a tariff, anyway? And who has the power to impose them? Joel Trachtman of the Fletcher School of Law and Diplomacy at Tufts University shares his expertise with Stewart, and, boy, does Joel know a lot about law, economics, and, well, tariffs.