Trump Asks Supreme Court to Allow His Sweeping Tariffs NYT | Top Stories Ann E. Marimow 4 September 2025 at 10:06 A federal appeals court had invalidated a centerpiece of President Trump’s economic strategy, finding that a 1977 law did not authorize the tariffs. © Alyssa Schukar for The New York TimesThe Port of Baltimore. Since taking office, President Trump has relied on the International Emergency Economic Powers Act of 1977 as a central part of his efforts to force companies to invest in the United States.