
Elon Musk and Tim Cook, far right, were among the U.S. chief executives in attendance during a state banquet in Beijing last week.

Elon Musk and Tim Cook, far right, were among the U.S. chief executives in attendance during a state banquet in Beijing last week.

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.