Ex-House speaker Michael Madigan, formerly the most powerful man in Illinois politics, “conspired to enhance and preserve (his) power and line his pockets” for years, prosecutors said at the outset of marathon closing arguments in Madigan’s corruption trial.

In his testimony earlier this month, former House Speaker Michael Madigan cast himself as a champion of the working class, a consensus-builder who used his power to bring people together on legislation and protect constituents from greedy utilities and corporations.