"But they constitute a tiny minority of his coalition." Goldberg is a liar and an apologist for the method Trump used to gain votes--racism. 
"On just about every measure, support for Trump increased along with measured racial animus. As the chart below shows, increased levels of overt racial stereotyping among white respondents — as measured by belief that black people, Muslims, and Hispanics are “lazy” or “violent — strongly increases support for Trump, even after controlling for other factors. "
"Trump support increases significantly among those who describe Muslims as “violent,” while the same does not hold for the other Republican candidates."
https://thewpsa.wordpress.com/2016/03/27/racial-resentment-and-the-rise-of-donald-trump/
"American politics have become increasingly tribal; Cramer takes that idea a step further, showing how these tribal identities shape our perspectives on reality."
A new theory for why Trump voters are so angry — that actually makes sense-Washington Post