If you make a product in the US, you get taxed as a business for making that product (fair enough). But if you make the product in a different country and import it, there is either less or no taxes depending.
The incentive has been strong for companies to outsource our manufacturing jobs away because of this. I understand that there are other reasons also, but this is such an easily fixable one. I love Trump's announcement today via tweet to take care of this problem. He is promising a 35% tax on those companies that outsource and then expect to bring their product back in for free. Washington lobbyists have to be absolutely freaking out right now.
Trump has promised lower tax rates & regs at the same time which is also key. There is sugar to go along with the medicine. Brilliant.