What did he do that will bring back manufacturing? Michigan, Ohio, and Pennsylvania are in a manufacturing recession. It turns out that tariffs don't work to protect our manufacturing jobs when we look at the aggregate.
Also, the US manufactures more stuff than any other time in its history, it just does it with less labor than it needed in the 80's. Even if manufacturing came back, it would not be some job boon. Products would become more expensive for the same quality that we get from China. The people employed would be higher skilled and likely need to come in on visa's because we already have a skilled labor shortage in America. Hell, our U3 unemployment rate is like 3.8% the last time I checked*.
America's problem is our intransigence to help one another move to where jobs are, and to get educated in the skills needed to fill those jobs. And I'm not talking about programming jobs here.