Chicago charter schools not even in top 40

So this is what Obama's faux liberal buddy Rahm Emanuel has been fighting teachers' unions for, total mediocrity?

UPDATE: (HT to The Exiled for both of these) It looks like South Carolina's public schools also outperform the state's charter schools.  I'll keep an eye out for more states, and/or national figures....

Today's lesson: charters do not outperform unionized schools 

By Ben Joravsky 

October 3, 2012 | Chicago Reader

URL: http://www.chicagoreader.com/gyrobase/chicagos-unionized-public-schools-outperform-charter-schools/Content?oid=7559748&showFullText=true