"Defined the Culture War Almost Entirely in Racial Terms"

"Ethnonationalism is a form of conservatism, and overlaps with standard-issue Republican conservatism in several ways, but the two philosophies diverge in ways that can leave their adherents bitterly at odds. (Buchanan worked for Richard Nixon and Ronald Reagan, but ran as a primary opponent of George Bush and Bob Dole, and left the party altogether to oppose George W. Bush.) Programatically, ethnonationalists differ from standard issue Republicans like George W. Bush or Paul Ryan in that they oppose free trade and immigration. Their orientation is nostalgic, rather than glitter-eyed about the future. Like traditional conservatives, they distrust federal power, but extend their circle of rhetorical enemies to include the corporate elite. Most importantly, unlike standard conservatives, who tend to disregard race, ethnonationalists have a deeply, explicitly racialized view of the world.
"All those ideological markers appeared in Trump's address."

Jonathan Chait at New York reacts to Donald Trump's speech accepting the Republican Party's nomination for President of the United States.

As does Rick Perlstein at The New Republic.