Service history
2 years in the U.S. Congress · since 2025
- Representative IN-8 2025–present
Background
- background Born September 21, 1962
- role Holy Family School Board (2001–2004), president (2003–2004)
- role Indiana House of Representatives (2008–2014)
- role Indiana Senate (2014–2024), majority leader (2018–2022)
- role U.S. representative for Indiana's 8th district since 2025
- achievement Won 2024 Republican primary with 38% of vote; moderate Republican Governance Group member
Campaign finance
2026 cycle
Incumbent for U.S. House IN-08 · 2026 General Election
- $1,171,366 raised
- $664,972 spent
- $713,500 cash on hand
| $1.17M | |
| $681.90K | |
| $257.03K | |
| Itemized (≥ $200) | $251.11K |
| Unitemized (< $200) | $5.91K |
| Other committees (PACs) | $421.38K |
| Candidate self-funding | $3.50K |
| Transfers from other committees | $488.93K |
| Offsets to expenditures | $530.30 |
| $664.97K | |
| Operating expenditures | $446.04K |
| Contribution refunds | $8.48K |
| Other disbursements | $210.45K |
| Cash on hand | $713.50K |
| Debts owed by committee | $6.25K |
Through June 30, 2026 · FEC
Data from FEC (through Jun 30, 2026)
Over time
Data from FEC per-cycle campaign finance
Money raised, spent, and cash on hand across every election cycle on record — toggle a series in the legend.
| Cycle | Raised | Spent | Cash on hand |
|---|---|---|---|
| 2024 | $1,545,284 | $1,338,178 | $207,106 |
| 2026 | $1,171,366 | $664,972 | $713,500 |
Track record
Assembled from Congress.gov · FEC · official disclosures — each fact links its own source
- Roll-call participation →
voted in 3 recorded roll calls · chamber median 100.0%
Missing a vote is not inherently negative — an absence can be excused, reflect leadership or committee duty, or a recorded pairing.
- Bills sponsored →
plus 218 cosponsored
A count of bills introduced as the primary sponsor; most legislation never advances, regardless of who sponsors it.
- Sponsored bills enacted →
of 15 bills sponsored
Whether a bill becomes law depends on the whole Congress, not the sponsor alone; substantive provisions often pass folded into other vehicles.
- Documented positions →
no positions documented yet
Documented, sourced positions we have on record — the absence of a documented position is not the absence of a view.
- Committee assignments →
committees and subcommittees
Committee seats are assignments made by party leadership — a measure of role and jurisdiction, not an achievement or a conflict in itself.
Assembled from CivicGate's ingested public records for Mark B. Messmer. A fact shown as “—” means we don't yet hold that data — not that the value is zero.
Voting record
Data from Congress.gov roll-call records
Full voting record (3 roll calls) → · Congress 119 · based on 3 of 645 recorded roll calls
Committee assignments (10)
Data from Congress.gov committee memberships
- Agriculture Committee
- Armed Services Committee · oversees Defense
- Education and Workforce Committee
- Commodity Markets, Digital Assets, and Rural Development Subcommittee
- Conservation, Research, and Biotechnology Subcommittee · oversees Technology
- Early Childhood, Elementary, and Secondary Education Subcommittee
- Livestock, Dairy, and Poultry Subcommittee
- Readiness Subcommittee
- Strategic Forces Subcommittee
- Workforce Protections Subcommittee
Top contributors (FEC)
Outside spending on this race
Data from FEC, Schedule E independent expenditures
Independent expenditures are money outside groups (PACs / super-PACs) spend to support or oppose a candidate without coordinating with their campaign. What's this? →
Issue positions (1)
Documented + CivicGate vote-derived — stated positions link their source; derived positions come from votes on direction-tagged bills
- Economy & TaxesFull support from votes
Documented relationships
Documented facts about Messmer, aggregated from public records. A documented relationship is not evidence of wrongdoing — it is context, not a conclusion.
No documented relationships of this kind on record — absence is not a finding.
Frequent co-sponsors
Connections network
Sponsored / cosponsored bills (200)
- HR 10017Permanent CBDC Ban ActcosponsoredAug 2, 2026
- HRES 1451Recognizing Charleston as the appropriate host city for the 2027 annual meeting of the Organization for Security and Cooperation in Europe Parliamentary Assembly.cosponsoredJul 22, 2026
- HR 9909Small Unmanned Aircraft Systems Operational Test, Evaluation, and Training Corridor ActcosponsoredJul 22, 2026
- HR 9859Ethical Investigations and Integrity ActsponsoredJul 21, 2026
- HRES 1449Expressing support for the Freedom 250 Grand Prix, to be held in the District of Columbia in August 2026.cosponsoredJul 21, 2026
- HR 9701Daughters of the American Revolution Membership Integrity Act.cosponsoredJul 14, 2026
- HR 9580PARITY ActcosponsoredJul 1, 2026
- HR 9535Securing Agriculture's Workforce Act of 2026cosponsoredJun 29, 2026
- HR 9517UNLOCK AUKUS ActcosponsoredJun 28, 2026
- HRES 1370Recognizing June 12, 2026, as the Solemnity of the Most Sacred Heart of Jesus and honoring the Sacred Heart as the living sign of Christ's divine love, mercy, humility, and reparation for sin.cosponsoredJun 14, 2026
- HR 9242No American Left Behind ActcosponsoredJun 9, 2026
- HR 9250Great American Outdoors Act 250cosponsoredJun 9, 2026
- HR 9147Abraham Accords Expansion Act of 2026cosponsoredJun 3, 2026
- HR 9128CFTC Protection of Information and Data Act of 2026sponsoredJun 2, 2026
- HRES 1320Calling upon all Americans on this Memorial Day, 2026, to honor the men and women of the Armed Forces who have died in the pursuit of freedom and peace.cosponsoredMay 21, 2026
- HR 8680Armed Forces Carry Rights Protection Act of 2026cosponsoredMay 6, 2026
- HRES 1252Resolution memorializing law enforcement officers killed in the line of duty.cosponsoredMay 3, 2026
- HR 8476No Antisemitism in Education Act of 2026cosponsoredApr 22, 2026
- HR 8375Medicare Advantage Improvement Act of 2026cosponsoredApr 19, 2026
- HR 8183MATCH Act of 2026cosponsoredApr 1, 2026
- HR 8036Interagency Coordination in Export Controls Act of 2026cosponsoredMar 23, 2026
- HRES 1122Honoring the life and legacy of Coach Louis Leo "Lou" Holtz.cosponsoredMar 17, 2026
- HR 7897No Tax on Drill Pay ActcosponsoredMar 11, 2026
- HR 7720Child Care Payment Integrity and Fraud Accountability Act of 2026sponsoredFeb 25, 2026
- HR 7678Gun Owner Registration Information Protection ActcosponsoredFeb 24, 2026
Comparison lens (E18)
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