The Supreme Court agreed on Tuesday to expedite a case challenging President Donald Trump 's authority to impose broad tariffs under federal law.

The justices scheduled arguments for November, an unusually quick timetable by the court's standards.

Why It Matters

A federal appeals court previously found that a wide array of Trump's tariffs were illegally implemented by invoking the International Emergency Economic Powers Act (IEEPA).

The decision undercut a central element of Trump's unilateral trade strategy and economic platform and could potentially raise the prospect of refunds if the tariffs are ultimately struck down by the Supreme Court.

What To Know

Small businesses and states challenging the tariffs say Trump illegally invoked emergency powers to levy import taxes on go

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