# Missouri HB638: Modifies provisions relating to election oversight

Missouri HB638, Modifies provisions relating to election oversight, is a 2025 Regular Session House bill sponsored by Mark Matthiesen (Republican); status failed, last action 2025-04-08 (Reported Do Pass - AYES: 8 NOES: 0 PRESENT: 0) (as of 2026-10-16).

- Canonical: https://policyrisk.com/state-bill/MO-HB638-2025
- As of: 2026-10-16
- Plain-text twin of the page above; the HTML and this file carry the same facts.

## Facts
- Bill: Missouri HB638
- State: Missouri
- Session: 2025 Regular Session
- Title: Modifies provisions relating to election oversight
- Status: failed
- Chamber: House
- Introduced: 2024-12-19
- Last action: 2025-04-08, Reported Do Pass - AYES: 8 NOES: 0 PRESENT: 0
- Sponsor: Mark Matthiesen (Republican)
- Cosponsors: 0
- Touches household money: no
- Roll calls: 2 (14 yes, 2 no in all)
- Economic provisions PRIA read: 0

## Summary

No summary available.

## Bill overview

No economic impacts identified for this bill.

## Sponsors and cosponsors

- Sponsor: Mark Matthiesen (Republican), House

## Roll call votes

| Date | Chamber | Motion | Result | Yes | No | Other |
| --- | --- | --- | --- | --- | --- | --- |
| 2025-04-08 | House | Reported Do Pass | pass | 8 | 0 |   |
| 2025-03-11 | House | HCS Reported Do Pass | pass | 6 | 2 | 1 |

## Actions (14)

- 2025-04-08: Reported Do Pass - AYES: 8 NOES: 0 PRESENT: 0 (House)
- 2025-04-07: Voted Do Pass (House)
- 2025-04-07: Executive Session Completed (House)
- 2025-04-02: Action Postponed (House)
- 2025-03-31: Action Postponed (House)
- 2025-03-26: Referred: Rules - Legislative (House)
- 2025-03-11: HCS Reported Do Pass - AYES: 6 NOES: 2 PRESENT: 1 (House)
- 2025-03-11: HCS Voted Do Pass (House)
- 2025-03-11: Executive Session Completed (House)
- 2025-02-25: Public Hearing Completed (House)
- 2025-01-22: Referred: Elections (House)
- 2025-01-09: Read Second Time (House)
- 2025-01-08: Read First Time (House)
- 2024-12-19: Prefiled (House)

## Bill text

- Committee Substitute, 2025-03-11: [PDF](https://documents.house.mo.gov/billtracking/bills251/hlrbillspdf/1737H.04C.pdf)
- Introduced, 2025-01-08: [PDF](https://documents.house.mo.gov/billtracking/bills251/hlrbillspdf/1737H.01I.pdf)

## Related bills

- HB3: Appropriates money for the expenses, grants, refunds, and distributions of the Department of Higher Education and Workforce Development (signed)
- HB8: Appropriates money for the expenses, grants, refunds, and distributions of the Department of Public Safety and the Department of National Guard (signed)
- HB11: Appropriates money for the expenses, grants, refunds, and distributions of the Department of Social Services (signed)
- HB10: Appropriates money for the expenses, grants, refunds, and distributions of the Department of Mental Health, the Department of Health and Senior Services, and t… (signed)
- SB79: Modifies provisions relating to health care (signed)
- SB271: Modifies provisions relating to emergency services (signed)

## Sources
- [Committee Substitute (PDF)](https://documents.house.mo.gov/billtracking/bills251/hlrbillspdf/1737H.04C.pdf)
- [Introduced (PDF)](https://documents.house.mo.gov/billtracking/bills251/hlrbillspdf/1737H.01I.pdf)

## Related
- [HB3: Appropriates money for the expenses, grants, refunds, and distributions of the…](https://policyrisk.com/state-bill/MO-HB3-2025)
- [HB8: Appropriates money for the expenses, grants, refunds, and distributions of the…](https://policyrisk.com/state-bill/MO-HB8-2025)
- [HB11: Appropriates money for the expenses, grants, refunds, and distributions of the…](https://policyrisk.com/state-bill/MO-HB11-2025)
- [HB10: Appropriates money for the expenses, grants, refunds, and distributions of the…](https://policyrisk.com/state-bill/MO-HB10-2025)
- [SB79: Modifies provisions relating to health care](https://policyrisk.com/state-bill/MO-SB79-2025)
- [SB271: Modifies provisions relating to emergency services](https://policyrisk.com/state-bill/MO-SB271-2025)
- [Missouri bills](https://policyrisk.com/states/missouri/bills)
- [Missouri state hub](https://policyrisk.com/states/missouri)
- [All state legislation](https://policyrisk.com/state-bills)

Source: PRIA, https://policyrisk.com/state-bill/MO-HB638-2025 (as of 2026-10-16).