White people still make up about 70-72 percent of voters. If whites voted as a block, the way minorities are urged to do, we could win without a single black, Hispanic or Asian vote. I saw a guy discussing this on TV a few weeks ago, he acknowledged that Trump could possibly win with very few minority votes, but then he was wailing about how that just wouldn’t be right, and he should even attempt to do that.
Voter demographics for the 2012 election. It’s about like this.
92 million whites
16.8 million blacks
13 million of Latino origins.
Actually according to the article, more like 75%. More importantly, significantly higher than that in key swing states like Ohio and Pennsylvania.