DES MOINES, Iowa—Like a previously undiscovered earthquake fault, Donald Trump’s presidential campaign is threatening to fracture the Republican electoral coalition along new lines. In the process he could disrupt both the demographic and geographic alignments that have defined previous races for the GOP nomination—and scramble the assumptions of his rivals about the coalitions they believed could power them to victory.
Out with the old, in with the what?
He has replaced those old divisions [based on ideology and religious affiliation] with a new division that centers on education, building an advantage among working-class Republicans large enough to lead in virtually all surveys both nationally and in the critical early states.
Etc.
Blithe Spirit 