The most powerful labor union executive in Chicago is John Coli Jr who's dad was a member of the Chicago mob and Glimco Jr who's dad was a capo in the Chicago Mob.
Through them the Chicago Outfit runs the teamster Joint councils like they always have since the 1920s
EVERY LEADER OF THE TEAMSTER JOINT COUNCIL 25 HAS BEEN CONNECTED TO THE CHICAGO MOB SINCE IT WAS FOUNDED
http://nlpc.org/stories/2015/09/18/corrupt-coli-family-chicago-teamsters-under-fresh-scrutinyhttp://www.cbsnews.com/news/obama-union-pledge-raises-questions/All the familiar Names....
http://www.teamstersjc25.com/about_us.html