Data Status
Local receipts: 2026-10-27 (0 days old)
Federal last sync: 2026-10-27 16:20:25.947786 (0 days old)
Federal latest report coverage: 2026-10-15T00:00:00
Federal latest receipt date (row-level): 2026-09-30 (27 days old)
Federal latest Schedule B date (row-level): 2026-09-30 (27 days old)
Federal latest Schedule E date (row-level): 2026-10-16 (11 days old)
Mary K O'Brien
Office: State Representative | District: Representative 75 | Party: Democratic | Residence county: Grundy
Committees All time
Total raised: $799,591.66 | This cycle: $0.00
Total spent: $416,343.92 | This cycle: $0.00
Most recently active first. Last activity looks at all time; Raised and Spent follow the window above.
| Committee | Status | Last activity | Last filing | Raised | Spent |
|---|---|---|---|---|---|
| Illinois Assn of Chiefs of Police PAC | Active | 2026-10-01 filing Recently active | Quarterly | $60,720.43 | $74,326.57 |
| Friends of Mary K O'Brien | Inactive | 2010-01-11 filing | Final | $738,871.23 | $342,017.35 |
Candidacies All time
| Election year | Election type | Race type | Outcome |
|---|---|---|---|
| 2002 | General Election | incumbent | won |
| 2002 | General Primary | incumbent | won |
| 2000 | General Election | incumbent | won |
| 2000 | General Primary | incumbent | won |
| 1998 | General Election | incumbent | won |
| 1998 | General Primary | incumbent | won |
| 1996 | General Election | challenger | won |
| 1996 | General Primary | challenger | won |
Money raised By election cycle
| Election cycle | Raised |
|---|---|
| 2024 | $2,000.00 |
| 2018 | $1,500.00 |
| 2016 | $8,000.00 |
| 2014 | $1,500.00 |
| 2012 | $4,050.00 |
| 2010 | $4,500.00 |
| 2008 | $11,950.00 |
| 2006 | $21,552.35 |
| 2004 | $50,168.67 |
| 2002 | $139,326.36 |
| 2000 | $117,222.63 |
| 1998 | $255,405.97 |
| 1996 | $182,415.68 |