Krugman wants to paint Cantor’s loss as the death of “movement conservatism.” The gist of movement conservatism, as he describes and I agree, is the interlocking of political strategy, bait-and-switch of cultural issues for working class with 1% priorities, with supportive media and think tank institutions.
Part of movement conservatism’s longevity since the Reagan, I think, is the ability of the mainstream Republican party to absorb the cyclic waves of stoked anger and activists into their rhetoric and policies.
Seems to me movement conservatism was already proclaimed dead several times, like 1998 midterms, Obama’s election, the “crazies” in primaries in 2010 and 2012 that sank some senate races… and probably others. Maybe Cantor is cardiac arrest. We’ll see if the corpus can recover.