“While everyone is focused on the impact of tariffs, the real story for the U.S. economy is the collapse in immigration: down more than 90% compared to the run rate of previous years, equivalent to a slowing in labour force growth of more than 2 million people,” George Saravelos, head of FX research at Deutsche Bank, wrote in a note on Friday. “This represents a far more sustained negative supply shock for the economy than tariffs.”

While Trump has pointed to weaker payroll growth as reasons for the Federal Reserve to cut interest rates, his immigration crackdown gives the central bank, which is already wary of the inflationary effect of his tariffs, another reason to wait and see.

That’s because a workforce that is growing more slowly doesn’t need as much hiring to absorb the additional labor supply. In fact, even as average payroll gains have cooled to 124,000 a month this year from 250,000 in 2024, the jobless rate has hovered around 4.2% since last summer.