Maybe all that winning was becoming boring. Whatever the reasons that led President Trump to rock the globe with his “Liberation Day” tariff regime, the immediate result has been a world of hurt for millions upon millions of Americans. The stock market meltdown that wiped out some $6.4 trillion of value last Thursday and Friday means many households saw 10% or more of their nest eggs suddenly erased. Their pain is matched only by their confusion about why the president triggered the sell-off. After all, Trump 2.0 was scoring major successes by sealing the border and deporting alien criminals. The...