The rise of tariff policy at the center of President Trump’s trade policy and his reliance on national security are truly unique in American foreign policy. However, they jeopardize both American foreign policy and U.S. national security.

The Trump administration’s reliance on a national security provision (§232 of the Trade Expansion Act of 1962) in imposing restrictions on the import of steel and aluminum will lead to serious challenges by countries in the World Trade Organization (WTO).