President Trump has claimed the authority to bypass Congress and impose sweeping tariffs on foreign products, arguing the import duties are necessary to strengthen the U.S. economy.

Now a federal appeals court has thrown a roadblock in his path.

The U.S. Court of Appeals for the Federal Circuit ruled Friday that Mr. Trump went too far when he declared national emergencies to justify tariffs on nearly every country on Earth. The ruling largely upheld a May decision by a federal trade court in New York.

But Friday's 7-4 appeals court decision tossed out a part of that ruling striking down the tariffs immediately, giving his administration time to appeal to the U.S. Supreme Court. The ruling represents a major setback for Mr. Trump, who has said his trade policies will enrich the

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