Open: This is “Face the Nation with Margaret Brennan,” March 9, 2025

This week on “Face the Nation with Margaret Brennan,” after a whiplash week of on-again, off-again tariff announcements, Canadian ambassador to the U.S. Kirsten Hillman joins to discuss the costs and consequences of a trade war. Plus, former White House Russia expert Fiona Hill discusses President Trump’s diplomatic pivot on Ukraine.