U.S. President Donald Trump has suffered a string of courtroom losses in recent days as he and his administration continue to test the legal limits of presidential powers.

Despite suffering six legal setbacks in less than a week, the administration is forging ahead with its agenda, in large part because none of these rulings constitutes the final judicial word on the matter.

In the case with the biggest implications for Canada, the U.S. Court of Appeals for the Federal Circuit ruled against Trump's imposition of broad-based tariffs on a wide range or trading partners — tariffs the administration had justified as a response to economic and narcotic emergencies .

That ruling came Aug. 29, last Friday. Since then, in quick succession, five other noteworthy court decisions have gone aga

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