{"biography":"According to the North Carolina voter file, Catherine M O'Brien is a registered voter in Chatham County, North Carolina, registered since 1996 (30 years), with party affiliation listed as Democratic [1].\n\nThe voter file shows Catherine M O'Brien's year of birth as 1963; NC publishes only the year of birth in its bulk voter export, so day and month are not part of the public record [1].\n\nThe voter history file shows 11 elections voted in since 2016, most recently the 2026-03-03 primary election [2].\n\nThis summary draws only from the public North Carolina voter registration and history records. No additional published biographical information was located. Voters with personal knowledge of Catherine M O'Brien can reach ballotproject.org with corrections or additions.\n\n**Update: O'Brien (running on the ballot as \"Kate O'Brien\") lost the March 3, 2026 Democratic primary for Chatham County Board of Commissioners District 03.** She placed second of two candidates with 6,005 votes; Michael R. (Mike) Roberson won the Democratic nomination with 6,575 votes. O'Brien will not appear on the November 3, 2026 general election ballot for this seat, per certified North Carolina State Board of Elections results [3].\n\n## Sources\n[1] [North Carolina State Board of Elections \u2014 Voter Search](https://vt.ncsbe.gov/RegLkup/)\n\n[2] North Carolina State Board of Elections voter history file (`ncvhis_Statewide`), published at [dl.ncsbe.gov](https://dl.ncsbe.gov/)\n\n[3] North Carolina State Board of Elections, certified March 3, 2026 election results (`results_pct_20260303.txt`), https://s3.amazonaws.com/dl.ncsbe.gov/ENRS/2026_03_03/results_pct_20260303.zip \u2014 accessed 2026-07-24\n","campaigns":[{"contest":"county_commission_district_03","county":"chatham","county_count":1,"electiondate":"Tue, 03 Mar 2026 00:00:00 GMT","pgr":"general","state":"NC","title":"Chatham County Board Of Commissioners District 03"}],"cf_filings":[],"firstname":"Catherine","fullname":"Catherine M O'Brien","lastname":"O'Brien","middlename":"M","office_history":[{"campaigns":[{"contest":"county_commission_district_03","contest_title":"Chatham County Board Of Commissioners District 03","county":"chatham","county_count":1,"electiondate":"2026-03-03","office_county":"chatham","office_key":"county_commission","office_title":"County Commissioner","party":"DEM","pgr":"general","state":"NC"}],"county":"chatham","cycles":[{"general":{"contest":"county_commission_district_03","contest_title":"Chatham County Board Of Commissioners District 03","county":"chatham","county_count":1,"electiondate":"2026-03-03","office_county":"chatham","office_key":"county_commission","office_title":"County Commissioner","party":"DEM","pgr":"general","state":"NC"},"party":"DEM","primary":null,"term":null,"year":2026}],"office_key":"county_commission","office_title":"County Commissioner","state":"NC","terms":[]}],"summary":"Per the NC voter file: DEM voter in Chatham County since 1996.","terms":[],"token":"a6c6e68b328f0e67"}