Illinois campaign finance reports show Rauner spent more than $28 million of his own money on his successful bid to become governor and on other races. The study finds that's more money than other candidates for state office and most other organizations or individuals nationwide.
Rauner wasn't the only Illinois name to crack the list of the country's top 50 donors. Businessman and Rauner supporter Ken Griffin also is on the list. So is the Illinois Education Association, which spent millions to try to stop Rauner from defeating Democrat Pat Quinn.
The Center for Public Integrity released an analysis Wednesday of spending on 2014 state-level campaigns.
