WASHINGTON — The U.S. Supreme Court during lengthy arguments Wednesday weighed whether President Donald Trump violated the Constitution when he became the first U.S. president to impose sweeping global tariffs under an economic emergency powers statute usually reserved to combat rare and unusual threats.

Justices in both the conservative 6-3 majority and liberal minority questioned the sweeping presidential power the administration is claiming under IEEPA, including Chief Justice John Roberts. Questions about how Trump officials interpret the statute and view its limits, or lack thereof, revealed their skepticism.

Members of the president’s Cabinet, members of Congress and even comedian John Mulaney packed into the high court for the first major case of Trump’s second term to be fully ar

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