Is U.S. Growth Slowing?

 Financial FAQs

“Real gross domestic product (GDP) increased at an annual rate of 1.4 percent in the fourth quarter of 2025 (October, November, and December), according to the advance estimate released today by the U.S. Bureau of Economic Analysis. In the third quarter, real GDP increased 4.4 percent.” BEA.gov

 

BEAgdp

The economic chaos that President Trump has sown by using the tariffs as a tool to coerce trading partners is a major cause of the sudden drop in fourth quarter (Q4) GDP growth from Q2 and Q3 growth (see graph).

So it’s great news the Supreme Court ruling that most of President Trump’s tariffs by executive order are illegal. It will create more certainty over the instability that has bedeviled consumers and businesses alike, which encourages future economic growth.

It’s also a huge victory for the rule of law over a president who routinely disobeys the law since only congress has the power to tax.

Businesses had rushed to counter the chaos created by the tariffs by stockpiling imports before Trump announced more tariffs. And import costs are subtracted from export prices to calculate GDP (Because imported goods aren’t produced domestically.), So higher imports, when all else is equal, tends to slow GDP growth, which measures what is produced domestically.

The furlough of hundreds of thousands of workers without pay during the 43-day government shutdown also slowed consumer spending that had already been affected by the tariff uncertainty.

So we are now beginning to see the damage Trump’s imagined cure for our trade deficits has done. He said other countries should have to eat the higher import costs from the tariffs but they passed on most of the higher costs.

Rump’s tariffs didn’t correct the trade imbalance between imports and exports either because importers then found ways to time their purchases between price swings and/or transfer their business to other countries that had lower tariffs.

In fact, the trade deficit—created by the amount imports exceeded exports— barely changed after all Trump’s planned chaos. It was $901 billion in 2025 vs. $903 billion in 2024.

“Had Congress intended to convey the distinct and extraordinary power to impose tariffs, it would have done so expressly, as it consistently has in other tariff statutes,” said the Supreme Court opinion, which was supported by a 6-3 majority of the court. Justices Samuel Alito, Brett Kavanaugh and Clarence Thomas dissented.

In other words, President Trump can no longer govern by creating the chaos and uncertainty that has enabled him to accumulate so much power and wealth. So maybe “The times they are a changin?”

And sowing economic chaos by being unpredictable doesn’t work as a negotiating tactic either. Companies usually waited until Trump’s TACO bluster caused him to back down before agreeing to a rate. And SCOTUS ruled he now must do the research required by other laws to justify the tariffs.

Trump’s tariffs did not decrease the flow of imports or boost domestic manufacturing, as intended. Domestic manufacturing lost another 80,000 jobs last year, in large part because of the higher steel and aluminum prices that go into so much manufacturing output.

And the mostly illegal tariffs worsened inflation as well. A New York Fed bank study found U.S. businesses and consumers have paid most of the costs of the price increases on imported goods.

“Over the course of 2025, the average tariff rate on U.S. imports increased from 2.6 to 13 percent. In this blog post, we ask how much of the tariffs were paid by the U.S., using import data through November 2025. We find that nearly 90 percent of the tariffs’ economic burden fell on U.S. firms and consumers” per the NY Federal Reserve.

The harm done by Trump’s tariffs by fiat makes a long list. China had stopped buying agricultural products as in Trump’s first term and higher tariffs have cost Ford and GM $billions in lost profits.

The Supreme Court ruling exposed the harm ignoring laws and our constitution has done to economic growth. Trump’s Republicans are no longer the party that stands for lower taxes, except among their wealthiest supporters. So much for increasing affordability!

Harlan Green © 2026

Follow Harlan Green on Twitter: https://twitter.com/HarlanGreen