
President Trump visiting a steel plant in West Mifflin, Pa., on Friday.

President Trump visiting a steel plant in West Mifflin, Pa., on Friday.

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.

It is not clear whether President Trump will follow through on the tariff threats, or to which products they would apply.