Well Trump talks about the tariffs for effect like with Ford but what he really wants to do is renegotiate all of our trade agreements such as NAFTA, CAFTA etc. And that sorely needs to be done to decrease our trade deficit. He also wants to lower the corporate tax rate which will bring business back to the US.
This guy is no dummy. Dummies don’t get to be billionaires.
From a purely political standpoint, Trump's biggest problem is that he's tailored his campaign to appeal to a shrinking base of Americans who actually aspire to work in factories. I know a few people whose parents worked in factories. They are all immigrants, and none of them will be voting for Donald Trump.