Chicago’s longest-serving alderman, the “ComEd Four” and a collection of public servants in some of the highest-profile corruption cases in decades.

Tim Mapes, former chief of staff to ousted Illinois House Speaker Michael Madigan, was convicted on perjury and obstruction of justice charges.

A jury found all “ComEd Four” defendants guilty of bribing Illinois House Speaker Mike Madigan in exchange for favorable legislation. It was an alarm for Springfield lawmakers that half-measures don’t work and lasting ethics reform is needed in Illinois.

The four top lobbyists and executives at the state’s largest electric utility were convicted May 2 for their involvement in a multi-year scheme to funnel $1.3 million in jobs, contracts and payments to sway the former Illinois House Speaker.

The ComEd 4 corruption trial proves concentrated power breeds corruption. The fix? Reform the rules former Illinois House Speaker Mike Madigan crafted to concentrate all that power.

Former Illinois House Speaker Michael Madigan and his co-defendant, Michael McClain, denied all corruption accusations brought against them. Federal prosecutors said Madigan used his position to run a criminal enterprise.

Michael Madigan, former Illinois House speaker, and his longtime political ally and operative will enter pleas in federal court Nov. 1. They are charged with coercing bribes from AT&T in return for passing favorable legislation in Springfield.

AT&T Illinois will pay a $23 million fine for illegally influencing former Illinois House Speaker Michael Madigan. Their former president, Paul La Schiazza, faces conspiracy charges.