Jensen Huang, the chief executive of Nvidia, said he did not bring up the chip with Chinese officials in Beijing last week.

From Indiana to Idaho, a Backlash Against A.I. Gathers Momentum By Tripp Mickle

Jensen Huang, Nvidia’s chief executive, last month. Mr. Huang and President Trump struck the 15 percent arrangement at a White House meeting last week.

An Intel construction site in Chandler, Ariz. Intel is among the companies that have pledged to invest hundreds of billions of dollars in U.S. chip-making facilities.

The Justice Department is focused on how Apple has used its control over the iPhone’s software and hardware to make its devices and services work better together.