New York Times: Trump, Waking a ‘Sleeping Giant,’ Helps Clinton Build an Unlikely Firewall

…Looking beyond the election, Republicans fear that Mr. Trump’s geographic dilemma could offer a grim glimpse of their party’s future: Unless they can win back constituencies he has driven away, the two fastest-growing regions of the country may continue to move decisively toward the Democrats.

“I think we may be seeing the ground shift under us,” said Senator Tom Udall, Democrat of New Mexico. “This may be a major political turning point.” Of Mr. Trump, he said, “He’s done some real damage nationally and in the West to Republicans by using some of the nastiest, angriest rhetoric we’ve ever had in politics.”