Eight years ago, it was all but unthinkable that Donald Trump could count on any significant support from two constituencies traditionally hostile to Republicans and crucial to Democrats. After his trip down that golden escalator, he delivered remarks about illegal immigrants that were widely viewed as insulting. They would be replayed over and over, destined to live in infamy. Most observers believed that he had permanently repelled minority voters and that the minimal support Republican presidential candidates had received over the years from Latino and black voters would shrink even further to almost undetectable levels.
In his victorious first run for the White House in 2016, Trump’s minority support was indeed shallow with only 6% of blacks and 28% of Latinos pulling the lever for the bombastic billionaire, according to the reputable Pew Research…