County commissioners set county policy and appropriations. Sean Morrison chairs the Cook County Republican Party and has represented the southwest suburbs since 2015 as one of the board’s Republican members.
Sean Morrison
| Office | Cook County Board |
|---|---|
| Office | Commissioner, 17th District — Cook County — Current term to 2026; on the Nov 3, 2026 ballot |
| Contact | Official Website |
| Verified | August 2026 |