Certainly the rust belt in this nation played a huge part in getting Donald Trump elected. DEMOCRATS voted for him in Ohio, Pennsylvania, Michigan & Missouri. The ball is in Republican hands now to produce jobs in those areas, and if they don't they're screwed in 2018, and again in 2020.
Trump was campaigning on reopening up 20 year old rusted out factories. He was campaigning on punishing American companies sending manufacturing jobs overseas. The problem with this is:
1. No investors are going to open up these factories so they can LOSE money. Foreign countries will always be able to manufacture goods and hardware cheaper than Americans can.
2. Paul Ryan has already stated that they will not impose a tax or penalty on American companies who send jobs overseas in order to be competitive in a global market. So that's dead on arrival.
3. Republicans have always been pro-trade, and they will not undo NAFTA or any other existing trade agreements.
4. Republicans won't agree to tariff's on foreign products, as it only drives the cost up to the consumer, and has never created a single job.
About the best they can do is eliminate a lot of the regulations that have been imposed on every single industry in this country, some of it ridiculous. to help encourage manufacturing companies to stay in this country. They can try lowering the corporate tax rate, but studies have shown in the past, that it really plays no hand in increasing job growth in manufacturing. And to keep in mind, automation has done a lot in this country to reduce jobs in manufacturing. Machines taking the place of people.
So Trump has his hands full, and it will be coming from Republicans in the Senate & house that will not agree to many of his policies.
So I doubt we're going to see much happen in the rust belt. I think Paul Ryan and Mitch McConnell will be concentrating on Obamacare, and Federal budget issues over the next two years, because in reality, that's all they've got is two years.