“If he were the Republican nominee he would get the highest percentage of black votes since Ronald Reagan in 1980,” said Republican messaging guru Frank Luntz, referring to the year Reagan won 14 percent of that bloc of voters. “They listen to him. They find him fascinating, and in all the groups I have done, I have found Obama voters, they could’ve voted for Obama twice, but if they’re African-American they would consider Trump.”

Another longtime Republican pollster and veteran of multiple presidential campaigns has tested Trump’s appeal to blacks and Hispanics and come to the same conclusion. “He behaves in a way that most minorities would not expect a billionaire to behave,” explained the pollster, who spoke on condition of anonymity to avoid damaging relationships within the party. “He’s not a white-bread socialite kind of guy.”

There’s more. The rest of Trump’s path to general-election victory, as laid out to POLITICO by pollsters, his campaign and his former advisers, looks like this: After winning the nomination on the first ballot, Trump unifies the party he has fractured behind him and reinvents himself as a pragmatic businessman and family man at the Republican National Convention. News of small-scale terror plots on American soil, foiled or successful, keep voters in a state of anxiety. Trump minimizes his losses with Hispanics by running Spanish-language ads highlighting his support for a strong military and take-charge entrepreneurial attitude, especially in the Miami and Orlando media markets. He draws the starkest possible outsider-insider contrast with Hillary Clinton and successfully tars her with her husband’s sexual history.