PROFESSOR JACOBSON: Why do leftist Jewish bloggers love the dual-loyalty smear? I dunno. Projection?

UPDATE: A reader emails:

Social climbers always impugn their own less-glamorous cohort in order to curry favor with the elites they seek to join. Many of my co-religionists yearn for acceptance by America’s high society champagne socialists. So, they smear fellow Jews, using them as rhetorical rungs on the social climbing ladder.

Hmm.