Many business leaders are getting used to the idea of higher tariffs—and tariff fluctuations—as a new normal that will stick around even after Trump leaves office in January 2029. The highest effective rate—the amount of tariffs collected divided by the total value of imports—was 3% in Trump’s first term. During Trump’s second term, however, the effective rate topped out at close to 11% before dropping to around 7%. That has led some companies to make major changes to their supply chains that they are unlikely to reverse. Foreign automakers are among the companies most affected by tariffs, and some have responded by announcing plans to expand their U.S. manufacturing. Import duties generate between $20 billion and $30 billion for the U.S. Treasury every month, and that money could be hard for any president to forgo said John Iselin. Trump Tariffs Could Become Permanent as Revenue Hits $20 Billion-$30 billion a Month – WSJ