Iowa › Mahaska County › Iowa Senate District 19
2 candidates are tracked for Iowa Senate District 19 on the November 3, 2026 ballot: Barb Kniff McCulla and Zachary Mecham. Candidate information follows official Mahaska County election filings; verify with the official election office linked below.
Barb Kniff McCulla (Republican), Zachary Mecham (Democratic) are on the November 3 ballot for Iowa Senate District 19. Not on the November ballot: Ken Rozenboom, the sitting member per the roster. Major-party nominees were chosen at the June 2 primary; No Party candidates qualify by nominating petition. The field is the Secretary of State's 2026 General Election candidate list, as read September 11, 2026. This seat is elected by district; only the district covering your address appears on your ballot.
Barb Kniff McCulla is the Republican candidate for Iowa Senate District 19 on the November 3, 2026 ballot, per the Secretary of State's 2026 General Election candidate list. Kniff McCulla currently serves as the Iowa House member for District 37 and is running for the open Iowa Senate District 19 seat, succeeding Sen. Ken Rozenboom, per Newton Daily News. No campaign website or questionnaire response was found as of September 11, 2026; the Secretary of State's certified candidate list is the only verifiable source for Barb Kniff McCulla.
Zachary Mecham, the Democratic nominee for Iowa Senate District 19, is a Pleasantville-based entertainer and inventor who co-founded two statewide disability rights organizations, according to the Newton Daily News. He is an entrepreneur who has a disability himself. No campaign website or questionnaire response was found as of September 11, 2026; the Secretary of State's certified candidate list is the only verifiable source for Zachary Mecham.
2026 priorities
- Access to Medicaid and vocational rehabilitation resources for people with disabilities, per Newton Daily News
