President Donald Trump's second-term economic plan can be summed up in one word: tariffs. When his barrage of these import taxes went into overdrive a month ago, markets trembled, and business leaders sounded alarms about the economic damage they would cause.

After a bombshell ruling last night found Trump’s imposition of tariffs illegal, a second federal court issued a major ruling against his tariff authority — a move that could have serious ramifications for the administration’s trade agenda and efforts to strike new deals with dozens of countries,