WASHINGTON — The U.S. Supreme Court did not issue a ruling on Tuesday on the legality of President Donald Trump's "reciprocal" tariffs on America's trading partners, including South Korea, despite expectations that the decision could come as early as this week. As the high court had announced a plan to convene a public session, speculation arose that it could rule on the legality of Trump's use of the 1977 International Emergency Economic Powers Act (IEEPA) to impose the country-specific tariffs. The court does not announce in advance which rulings it will deliver. The court announced its opinions in three separate cases on its website on the day, but there was no decision on the IEEPA tariff case. Entrepreneurs, policymakers and others have been closely watching the tariff ruling as it could have ramifications for global trade. The Trump administration has imposed 15 percent reciprocal tariffs on Korean products, down from 25 percent, in accordance with a bilateral trade and investment deal under which Seoul has committed to investing $350 billion in the United States, among other ple