Apple has been in the process of moving some of its manufacturing back to the USA for about a decade now. They have a plant in Austin the produces Macs, and are expanding their facilities here with another new plant scheduled to open in the next year or two. I suspect several similar companies, including my own, to follow in the near future.
Still, a ton of the subtier components are manufactured in China. Shifting that production elsewhere is actually a much more difficult challenge.