Mark B. Messmer

RepublicanDistrict R+18119th CongressOn the ballot 2026

Typical swing score20#369 of 433 representatives across tracked bills

Contact Mark B. Messmer’s office

Official D.C. office details from the congress-legislators dataset

Call office 202-225-4636 Contact via website

Washington, D.C. office

1208 Longworth House Office Building Washington DC 20515-1408

Model

v3defaultv2

Directional: count only breaks toward the other party Why do scores change?

Signals to watch

What in this member’s district, record and ideology could move them, and in which direction. Their score is the same on every bill they haven’t committed to, so these are the things to watch.

Could pull them toward Democrats · 1 signal

Weak
Backs 1 Democratic-led tracked billSponsor or active cosponsor of 1 of the 865 tracked bills that were introduced by Democrats: H.R. 4446.

Keeps them with Republicans · 2 signals

Medium
Votes with House RepublicansNo ideology or scorecard measure places this member toward the Democrats: DW-NOMINATE +0.544 (party median +0.530; rank 116 of 219 by distance toward the Democrats); Heritage Action 96 (avg 86); LCV 0 (avg 1).
Medium
Safe Republican district: IN-8 is R+18IN-8 has a partisan lean of R+18 (25% 2020 / 75% 2024 presidential two-party vote vs. the nation). Little electoral pressure to break with the party.

Bill-specific inputs

Term and election

From the congress-legislators dataset

On the ballot 2026

Current term: January 3, 2025 – January 3, 2027
Next election: November 3, 2026
Years in office: 1.8 years

Committees

Seats on a bill’s committee of referral add a in swing-v3

House Committee on Agriculture
Majority · 26th in seniority
- Subcommittee on Conservation, Research, and Biotechnology
- Subcommittee on Commodity Markets, Digital Assets, and Rural Development
- Subcommittee on Livestock, Dairy, and Poultry
House Committee on Armed Services
Majority · 27th in seniority
- Subcommittee on Readiness
- Subcommittee on Strategic Forces
House Committee on Education and Workforce

Voting ideology

first dimension, from Voteview

R median

D median

Messmer

← More liberal (−1)More conservative (+1) →

Their score of +0.544 is 0.01 to the right of the House Republican median (+0.530).

Advocacy scorecards

Their rating vs. the House Republican average

119th Congress96
House Republican average: 86 (n=217)

Swing score by bill

swing-v3, directional · a bill marks a member as committed to it

Showing 1–50 of 858 tracked bills, best swing first

Swing score for Mark B. Messmer on each tracked bill
Bill	Their role	Swing score ·
H.R. 1118Value Over Cost Act of 2026Summary on Congress.gov	No position yetNow in the Senate	35 Broke with party on 1% of 13 similar votes Sits on a committee of referral	Middle
H.R. 8823Putting Patients First by Strengthening Provider Accountability in FECA Act