This is something I'm also interested on.
Yesterday I watched Trump's RNC nomination acceptance speech.
It had many things which should be good for the Americans, but he also talked about Tariffs to prevent companies from outsourcing jobs abroad.
Not being an expert, I'm under the impression that Tariffs, while they could help keep some jobs into the country, they could also make many other products more expensive as they need to be bought from abroad.
So unless America is able to produce everything it needs via domestic industry, the consumer's income will not be too much better.