[tomder55]

It is the power it gives him.

Anyone trying to make sense of President Trump’s tariffs is missing the point. The conga line of trade negotiators will keep dancing because Mr. Trump will continue to use tariffs to exert dominance, signal threats and make deals. There won’t be a new end state. Tariff numbers will keep fluctuating, prices for goods and investments will be unreliable, and agreements won’t last. But the damage to America’s economy and strategic interests will persist.
The president has cited various goals for his disorderly deal-making. He wants to cut bilateral trade deficits, open foreign markets, protect favored U.S. industries and restore manufacturing. He also wants to raise revenue and in some instances simply punish others for a perceived offense. His administration leaps from one rationalization to another to justify the boss’s most recent whim. But Mr. Trump won’t be pinned down. He believes uncertainty adds to his power and wants the freedom to bully others depending on what has his attention.

Why the Trump Tariff Merry-Go-Round Won’t Stop - WSJ