- Carney Stands Up to Trump in U.S.-Canada Trade War The New York Times
- US imposes 50% tariffs on Canadian goods after negotiations collapse USA Today
- US Hits Canada With 50% Tariffs and Carney Vows to Retaliate Bloomberg.com
- No deal reached in U.S.-Canada trade talks as 50 percent tariffs take effect The Washington Post
- U.S.-Canada trade talks collapse, ushering in wave of new tariffs CNBC
