America's trade gap continues to widen, with the AI infrastructure boom and tariff volatility driving imports to a record and weighing on third-quarter GDP expectations.

On Tuesday, October 6, data released by the US Department of Commerce showed that the August goods and services trade deficit expanded 13.7% month-over-month to $105.6 billion, exceeding economists' expectations of $102.1 billion and marking the highest level since March 2025, a period that coincided with the import surge just before Trump announced so-called "reciprocal tariffs."

The widening deficit stemmed from imports growing faster than exports. US imports in August reached a record $420.8 billion, up 4.3% from July. Exports rose 1.4% from July to $315.2 billion.

The larger-than-expected deficit expansion weighed on market expectations for third-quarter economic growth. Goldman Sachs cut its third-quarter GDP tracking estimate by 0.3 percentage points to 3.1%, while the Atlanta Fed's GDPNow model immediately lowered its forecast by 0.1 percentage points to 3.7%.

Record imports, with AI buildout demand as the core driver

August imports grew 4.3% month-over-month, with capital goods particularly prominent, as imports of capital goods including computers and accessories, semiconductors and telecommunications equipment rose $6.2 billion month-over-month.

Semiconductor imports posted a record month-over-month increase, jumping $2.4 billion in a single month, reflecting the continued expansion of artificial intelligence data center construction. In the first eight months of the year, combined imports of semiconductors, computers and computer accessories rose $234 billion year-over-year; semiconductor imports in the first eight months exceeded $90 billion, nearly double the same period last year.

On this point, Brad Setser, a senior fellow at the Council on Foreign Relations, noted that data center spending has pushed the trade deficit to "a level second only to the import surge in early 2025," while electronics are largely exempt from the Trump administration's tariffs, "which is the key point."

Nominal imports of industrial supplies (including petroleum and petroleum products) also rose $9.1 billion month-over-month, while imports of nonmonetary gold rebounded in tandem. At the same time, spending by travelers to the US fell to its lowest since August 2023, leaving services exports nearly flat.

Tariff effectiveness in doubt, quarterly GDP under pressure

The core logic behind the Trump administration's aggressive push for tariffs to shrink the deficit is being questioned on multiple fronts.

Since Trump's second term began, the average monthly trade deficit has been $74.5 billion, slightly above the $73.8 billion monthly average in Biden's final year in office.

Christopher Rupkey, chief economist at FWDBONDS, said US labor costs are too high and factory construction cannot keep pace with demand, leaving importers with "no good options." He said:

Although the administration's economic policies have sharply raised the tariff costs on numerous imported goods, America's dependence on foreign goods has not diminished in the slightest.

Nationwide financial economist Oren Klachkin offered a more optimistic interpretation:

Higher prices have somewhat exaggerated the data, but net trade will still drag on third-quarter GDP growth. We see this as a signal of strong domestic demand.

In the first eight months of the year, the cumulative goods and services deficit narrowed by about 20% from the same period last year, while the goods trade deficit also fell by about $110 billion year-over-year.

Grace Zwemmer, a US economist at Oxford Economics, noted in a report that the trade data "is expected to significantly drag on third-quarter economic growth," with recent AI demand and corporate restocking needs set to keep imports strong, while the offsetting effect of US oil exports on the deficit will be weaker than in the second quarter.

On the policy front, the Supreme Court in February of this year ruled that Trump's imposition of global tariffs by invoking the International Emergency Economic Powers Act was unlawful, after which the administration turned to other legal grounds to rebuild the tariff system. In July, the White House launched a new round of tariffs on more than 80 countries and regions and plans to impose additional tariffs on more than 40 countries.