Trump and Republicans
Thomas Edsall defines Trump's single-issue constituency and their demography on today's NY Times op ed page ("Donald Trump Understands Republicans"). What he understands is that the party's latent Nativism trumps the rest of its ideolog(ies).Republicanism has always been driven and led by business interests, but its coalition broadened considerably in the 1960s, when it began absorbing Southern Democrats; in the 1970s when it took in formerly Democratic anti-Abortion Catholics, and evangelicals, who had been apolitical for generations; and of course in the 1980s, when Reagan brought in so many blue collar voters. The Cold War consensus had kept isolationists in both parties in the shadows, but under Bush II, Neo-con interventionism rose to the fore again, driving its recently-revenant isolationists back underground.