The invoking of national security to unravel trade agreements could scramble the international trading system in China’s favor. President Trump’s move this weekend to slap sweeping tariffs on Canada, Mexico and China is threatening to fracture the global trading system and a world economic order that once revolved around a U.S. economy that prized open...

Amid warnings of price increases, Canada moved quickly to retaliate, China said it had planned countermeasures and Mexico said it would soon unveil its response. The United States and its biggest trading partners were hurtling on Sunday into a new era of protectionism as Canada, Mexico and China said they would adopt countermeasures against new...

Traders work at the New York Stock Exchange on Jan. 29, 2025.  NYSE Stock futures tumbled Sunday night to kick off a new trading month as investors weighed new U.S. tariffs on goods from key trade partners and their potential impact on the economy and corporate profits. Futures tied to the Dow Jones Industrial Average...