If the Supreme Court rules that U.S. President Donald Trump’s use of — or abuse of — his most potent power to impose tariffs under the International Emergency Economic Powers Act (IEEPA) is unconstitutional, the threat that Alberta faces will lessen.

This will not be the case in other parts of Canada, where the threat of U.S. tariffs would continue to inflict real damage even if the Supreme Court ends the president’s ability to use IEEPA tariffs.

Why would Alberta fare better than other parts of Canada?

First, it is critical to understand that there are a handful of laws and regulations under which Congress, solely responsible for the power to tax (tariffs are taxes), has delegated some of this power to the president. There are enormous differences in what a president can do under the d

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