WASHINGTON, D.C. — In a major rebuke of presidential power, the U.S. Supreme Court ruled 6–3 that President Trump cannot impose billions of dollars in tariffs on the American people by declaring a national emergency. At stake was a key constitutional question: Who has the power to tax — Congress or the president? In Learning Resources, …WASHINGTON, D.C. — In a major rebuke of presidential power, the U.S. Supreme Court ruled 6–3 that President Trump cannot impose billions of dollars in tariffs on the American people by declaring a national emergency. At stake was a key constitutional question: Who has the power to tax — Congress or the president? In Learning Resources, …