CNBC Daily Open: The U.S. and Canada exchange blows over tariffs, churning markets
- Posted on March 12, 2025
- By CNBC
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CNBC Daily Open: The U.S. and Canada exchange blows over tariffs, churning markets

The White House engaged in a brief trade war with Canada on Tuesday over energy surcharges and steel tariffs. Cooler heads prevailed but markets weren't calmed.