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🧵The U.S. Supreme Court declared President Trump’s use of IEEPA to impose global tariffs against U.S. trading partners illegal. @geopolitics.csis.org assesses how governments and key sectors around the world are likely to react. Learn more: www.csis.org/analysis/sta...

The ruling "provides relief for Canada and Mexico by reducing uncertainty and restoring some predictability," says CSIS Americas Program expert Christopher Hernandez-Roy. However, these benefits would be "significantly mitigated" by rising manufacturing costs under new Section 232 tariffs.

"A removal of tariffs will be greeted with expressions of relief in Australia," writes CSIS Australia Chair expert Charles Edel, who notes that tariffs have brought heavy costs in the Washington-Canberra relationship that new measures would worsen.

"Chinese leadership will not be counting on the Supreme Court to save its commercial relationship with the United States," write @chinaecon.csis.org, @chinapower.csis.org, and the Freeman Chair. Instead, Chinese businesses have found alternative export markets to counter stagnating domestic demand.