1) Foreign policy; specifically the complex nature of the Middle East
2) Economics (not the same as business although the argument could easily be made he doesn't understand business either)
3) How the US government even works
4) Immigration. Him coming up with the mentally lazy solution of deporting all illegals says nothing about his knowledge of statistics or the current law of it in this country.
Now keep in mind that regardless of what you think of the character of Obama or Hillary, nothing changes the fact that their education backgrounds are in law and public policy. That gives us evidence of their knowledge of these subjects.
Quite honestly I don't give a **** what you believe or not. You lost asshole, deal with it.
Lol you're just butthurt you can't justify winning.
Looking at everything Hillary has done justifies Trump's win pretty easily.
Bannon, Kelly Anne Conway, Sean Hannity, Laura Ingraham, Gen Flynn, Giuliano, and I can name a few more,
helped him, by demoralizing Clinton and also Trump won by the skin of his teeth.