A little-known federal court threw a giant monkey wrench into a foundational part of President Donald Trump’s economic agenda by striking down most of the sweeping tariffs he has imposed since taking office.

A startling decision Wednesday from the United States Court of International Trade appeared to put at least a temporary pause on many of President Trump's wide-ranging tariffs. The Manhattan-based trade court ruled in an opinion issued by a three-judge panel that a key 1977 law called the International Emergency Economic Powers Act (IEEPA) does

Here is some background on the court that made the May 28 decision to block a far-reaching tariff policy May 28.