In 2020, one of the largest energy companies in America, Commonwealth Edison (ComEd), admitted to bribing “Public Official A” for legislation that allowed the company to increase the utility rates ComEd charged to Illinois citizens. Public Official A is almost certainly former Illinois House Speaker Michael Madigan, the longest-serving House Speaker in a state legislature in American history. Though Madigan denies wrongdoing and has not yet been charged, the evidence indicates that for close to a decade, ComEd bribed Madigan—for example, by giving Madigan’s allies political patronage jobs and “do-nothing consulting” contracts—in exchange for favorable legislation.

Madigan’s tenure as Speaker exemplifies Lord Acton’s adage that absolute power corrupts absolutely. During his time as Speaker, Madigan consolidated power over the legislative process, as well as substantial leverage over how other House members voted. This concentration of influence made him the ideal corruption broker for companies like ComEd. Preventing this sort of corruption from arising in the future will require various reforms, including the empowerment of external watchdogs, such as the currently dysfunctional and ineffective Office of the Legislative Inspector General. But while proposals to reform this office (see here and here) are welcome, genuine structural reform will require addressing the excessive concentration of power in the House Speaker. If Illinois, and similar jurisdictions, hope to tackle the sort of corruption we see in the ComEd scandal, it is essential to ensure greater dispersion of power within the legislature.