John O'Sullivan was a Democratic member of the Illinois House of Representatives for a brief period between August 2010 to January 2011. He served on the Vehicle Safety committee. He is the Democratic Committeeman for Worth Township. He has been the Committeeman since 2010, when he ousted incumbent Dennis Magee. He is a member of Laborers' International Union of North America Chicago Local 2.
As of 2019, O'Sullivan was the Worth Township Supervisor. OâÂÂSullivan resigned in 2021 after pleading guilty to a bribery scheme.
https://chicago.suntimes.com/crime/2021/6/17/22538372/bribery-scheme-former-worth-township-supervisor-john-osullivan-pleads-guilty