Gary Kamiya on what is happening to San Francisco

Gary Kamiya, a long-time San Francisco writer and journalist, in a recent article in the Atlantic, zeros in on the tectonic political shifts resulting from San Francisco's voters' recall of three school board members and the district attorney. While few cities have personified the progressive vision more than San Francisco, Kamiya says there seem to be limits to its progressive agenda.  Is it a harbinger for other "blue" cities?