Trump doesn't get it -  U.S. mining jobs have been decreasing for years under Republicans & Democrats due to increases in automation, growth in natural gas use, decrease in costs of solar panels and wind turbines  to produce electricity cheaper than burning coal as well as being emissions free/
So now he's ging to dig up more coal to what end? I guess he's going to have coal fired plants built which are going to coast more to run than natural gas ones and create more dirty air. 
Coal mining accounts for about 1/10 of clean energy jobs - But of cousr he's got to fulfill his promises to the coal miners and his billionaire friends in the coal industry and it will all go nowhere in the end with few new jobs but more money in the pockets of his coal buddies. He would take the US back to the dark ages if he thought thought there was money in it. In fact he'd hire people to go out and destroy machinery to create more jobs if he could see money in that - his ideology is just so regressive.