Nate Silver doubts that Donald Trump can turn any blue states red, which he would have to do to win the general election. I'd go further than that by asking what demographic Trump has a chance in? He's not going to do well with women, African-Americans, Muslims, Latinos, or millennials, all of whom will turn out in droves to defeat him.
There was a time in this country when you could get elected solely by angry white men over fifty, but then the 1800s ended. Besides, Trump wouldn't have had a chance then, either, because Twitter and cable news networks didn't exist.