Subscribe to Economics Daily for the latest news and analysis.President Donald Trump’s efforts to curb immigration are coming at a precarious time for the US labor market, threatening to choke off a key growth engine just as tariffs are poised to drag down economic activity.

An AI doctoral student in California told TechCrunch in a report published today that his immigration status in the U.S. is currently under threat after spending a decade in the country — just one of about 1,000 international students whose visas have been revoked recently.

The thousands of troops Mr Trump has stationed at the border may also act as a deterrent. Immigrant advocates in El Paso say that would-be migrants are taking a “wait and see” approach to the new administration. Illegal crossings could eventually tick up as coyotes discover new, and perhaps more dangerous, smuggling routes.