Missouri Senate · District 8
Mike Cierpiot
Where they sit
Every current senator, placed from most liberal to most conservative by how they voted on contested bills.
Mike Cierpiot's seat is marked. Seats run from most liberal (left) to most conservative (right), by contested floor votes. Color shows how often each member crosses party lines toward the middle on votes that divide the parties: solid blue or red means almost never, and purple means on at least 1 in 5 of those votes. Gray seats are members too new to score. How these numbers work
The scores
How these numbers work →Each tick is a current senator, by party; the dot is Mike Cierpiot.
Each tick is a current senator, by party; the dot is Mike Cierpiot.
Bills
The bills Mike Cierpiot sponsored this term and how far they got. Co-sponsors aren’t counted.
| Bills | |
|---|---|
| Sponsored | 22 |
| Passed both chambers | 1 |
| Became law | 1 |
| Vetoed by the Governor | 0 |
Rank by bills passed: Rank 14 of 33 in the Senate (tied with 6 others) · 14 of 23 Republicans (tied with 4 others)
A bill's sponsor is the member who introduced it; co-sponsors aren't counted.
Bills that passed both chambers
| Bill | Result | Final action |
|---|---|---|
| SB 4 (2025 Regular Session) Modifies and creates new provisions relating to utilities |
Became law | March 13, 2025 |
Budget projects
Missouri's appropriation bills don't say which legislator asked for an item, so there's no budget figure for Missouri legislators.
Contested votes where they split
10 against the Senate President Pro Tem; 9 against most of their party.
| Date | Bill and motion | Their vote | Senate President Pro Tem | Most of their party |
|---|---|---|---|---|
| May 14, 2026 | HB 2097: Changes a pilot agricultural education program in elementary schools to a statewide program Third Reading and Final Passage |
Nay | Yea (split) | Nay |
| May 6, 2026 | SB 1012: Creates new provisions relating to artificial intelligence Third Reading and Final Passage |
Nay | Yea (split) | Yea (split) |
| March 25, 2026 | SB 945: Modifies provisions relating to court operations Third Reading and Final Passage |
Yea | Nay (split) | Yea |
| March 9, 2026 | Journal: Amend Senate Journal, Second Regular Session, Thirty-First Day, Thursday, March 5, 2026, Page 536, Line 27 Amendment to the Journal |
Yea | Nay (split) | Nay (split) |
| Sept. 12, 2025 | HJR 3: Creates the "Protect Missouri Voters" amendment Previous Question |
Nay | Yea (split) | Yea (split) |
| Sept. 12, 2025 | HJR 3: Creates the "Protect Missouri Voters" amendment Previous Question |
Nay | Yea (split) | Yea (split) |
| Sept. 12, 2025 | HJR 3: Creates the "Protect Missouri Voters" amendment Previous Question |
Nay | Yea (split) | Yea (split) |
| May 14, 2025 | HB 567: Modifies provisions relating to employee compensation Previous Question |
Nay | Yea (split) | Yea (split) |
| May 14, 2025 | HB 567: Modifies provisions relating to employee compensation Previous Question |
Nay | Yea (split) | Yea (split) |
| May 14, 2025 | HB 567: Modifies provisions relating to employee compensation Previous Question |
Nay | Yea (split) | Yea (split) |
| March 13, 2025 | SB 35: Establishes the Revitalizing Missouri Downtowns and Main Streets Act Third Reading and Final Passage |
Yea | Yea | Nay (split) |
Every roll call
How Mike Cierpiot voted on each of the 422 floor roll calls while in office, newest first.
| Date | Vote | Their vote | Most of their party | Senate President Pro Tem | Yeas–nays |
|---|---|---|---|---|---|
| Loading… | |||||
Contested and party-line votes link to their own pages; the rest link to the official record.
Contact, committees and caucuses
Contact
- Official page
- www.senate.mo.gov
- mike.cierpiot@senate.mo.gov
- Capitol office
- Room 422, 201 W. Capitol Ave., Jefferson City, MO 65101
573-751-1464
Committees
- Commerce, Consumer Protection, Energy and the Environment Chair
- Appropriations
- Budget Conference
- Fiscal Oversight
- Rules, Joint Rules, Resolutions and Ethics
Contact details and committee assignments from Open States' data on the Missouri General Assembly, which it collects from the chambers' websites, as of Oct. 15, 2026.
Source: the Missouri House and Senate Journals, Jan. 8, 2025 to Sept. 16, 2026. How these numbers work · Corrections