Fred Klonsky has the charter scandal of the day in Chicago. The founder and CEO of the Noble (no excuses) Charter Chain is stepping down after being accused of inappropriate conduct towards former students.

Public radio reporters Sarah Karp and Adriana Cardona-Maguigad of WBEZ broke the news of the latest Chicago charter school scandal.

Michael Milkie, the CEO of Noble, the city’s largest charter school network, is being investigated following complaints of “inappropriate behavior toward young female alumnae.”

Milkie has resigned in disgrace but without further consequences.

Noble runs 17 charter high schools and one middle school that serve more than 12,000 students.

Read the ugly details.

Noble has been considered Chicago’s premier charter chain.

One of the charters in named for billionaire Governor Bruce Rauner (just defeated). Another is named for billionaire heiress Penny Pritzker, who was Obama’s Secretary of Commerce. Her brother J.B. Pritzker, another billionaire, just defeated Rauner.