Marc Busch

Marc L. Busch is the Karl F. Landegger Professor of International Business Diplomacy at the Walsh School of Foreign Service, Georgetown University. Follow him on Twitter @marclbusch.

Author Archive

  • May 26, 2026
    On May 12, the Department of Justice urged the Supreme Court not to hear the case HMTX Industries v. U.S. The administration’s brief reveals a view of presidential tariff...
  • Mar 23, 2026
    On March 11, the Trump administration opened a sweeping new Section 301 investigation into what it calls “structural excess capacity” in global manufacturing....
  • Feb 21, 2026
    If the Supreme Court strikes down the sweeping tariffs that President Trump invoked under the International Emergency Economic Powers Act, the administration won’t...