Having purged their faculties more than a decade ago of those suspected of conservative leanings, the campus progressives are now going after their own.

Haverford College recently disinvited Robert J. Birgeneau, the former Chancellor at UC Berkeley. A man with impeccable progressive credentials, Birgeneau’s offense was to allow the Berkeley police to use force against “Occupy” protestors in Sproul Plaza in 2011 — negating a career-long commitment to progressive causes including advocating for undocumented immigrants and promoting the LGBT community on campus.