Prepare from some rubbish American products
There are areas of manufacturing that the US technology sector has not done in a very long time, and so those that are familiar with the processes and techniques will be retired or rather rusty in their skills.
You do not simply buy a chip fabrication plant, plug-it in, start shovelling sand in and expect perfectly performing chips out the other side. There are a lot of skills that people have got to acquaint themselves with, and this may not be doable in the maximum 8 year term that Trump has (if and only if he is re-elected).
Rushing into this is going to end in tears.