Madigan, 82, and his co-defendant, political ally and confidant Michael McClain, are accused of running a criminal enterprise designed to enrich the former speaker and his associates and increase his political power.

Prosecutors began wrapping up their final summations Friday on Day 3 of closing arguments in the former speaker’s landmark trial by presenting an overview of how the various bribery and corruption schemes alleged in the government’s 23-charge indictment all come together under count one: racketeering conspiracy.