Trump Escalates Post-Ruling Retaliation: Global Tariff Jumps to 15% for 150 Days

Trump’s gambit echoes Richard Nixon’s surprise 10% “import surcharge” of Aug 1971—another temporary levy under balance-of-payments authority that collapsed under allied push-back by December. Like the 1930 Smoot-Hawley tariff (duties averaged 40% and triggered retaliations), today’s move reveals a centuries-old pattern: presidents reach for trade barriers when domestic politics collide with sluggish industrial regions and a skeptical Congress. Section 122 was designed for short-term balance-of-payments crises of the Bretton Woods era; using it as a back-door industrial policy spotlights a four-decade drift of power from Capitol Hill to the Oval Office—and the Court’s attempt to yank it back. Over a 100-year horizon, this moment will matter if it accelerates two trends already under way: fragmentation of the post-1995 rules-based trade system and judicial re-assertion of congressional prerogatives. If Congress remains inert, other presidents may test fresh legal “work-arounds,” entrenching tariff volatility as a new norm; if allies retaliate or if Congress reclaims tariff authority, Trump’s 150-day experiment could be remembered as the high-water mark—much like Nixon’s surcharge—of unilateral U.S. tariff activism in the 21st century.