At what economists define as full employment, which is more-or-less where the US actually is regardless of claims to the contrary, the need is really to improve the quality and value of the jobs available.
Jobs in coal really don't meet the definition of high quality, valuable jobs. Returning coal mines to production implies subsidies ad hence wealth redistribution (coal is an inefficient source of power) and harm to the climate (clean coal is a myth in any scientifically or economically meaningful sense).
But keeping wages low suits the wealthy. Improving the quality and value of jobs won't help them. I wonder what Trump will do. Serve the billionaire class? Or welch on his commitments to blue collar workers?
Hmmm. Who has he appointed to the Labor Department? Is there a clue there?