Mark Messmer — Voting Record & Political Positions

U.S. Representative for IN's 8th Congressional District · Republican

Mark Messmer is a Republican U.S. Representative for IN's 8th Congressional District. This page tracks Mark Messmer's congressional voting record, attendance, legislative effectiveness, and positions on key issues. In office since 2025.

Mark Messmer's Voting Record at a Glance

• Party-line voting: votes with Republican 96.06% of the time (3.94% of votes break with the party).
• Legislative effectiveness: sponsored 202 bills, 7 of which were enacted into law.

Top Issues Mark Messmer Votes On

• Climate Change
• Immigration
• Taxation
• Defense Spending
• Renewable Energy
• Health Insurance

How Mark Messmer Voted on Recent Bills

• Nay on “Ukraine Support Act” (2026-06-04) — Passed
• Nay on “Providing for consideration of the bill (H.R. 2913) to authorize support for Ukraine, and for other purposes.” (2026-06-04) — Passed
• Yea on “Agriculture, Rural Development, Food and Drug Administration, and Related Agency Appropriations Act, 2027” (2026-06-04) — Passed
• Nay on “Directing the President pursuant to section 5(c) of the War Powers Resolution to remove United States Armed Forces from Lebanon.” (2026-06-04) — Failed
• Yea on “Northwest Straits Marine Conservation Initiative Reauthorization Act of 2025” (2026-06-03) — Passed
• Nay on “Directing the President, pursuant to section 5(c) of the War Powers Resolution, to remove United States Armed Forces from hostilities with Iran.” (2026-06-03) — Passed
• Yea on “No Funds for Repeat Child Care Violations Act of 2026” (2026-06-03) — Passed
• Yea on “Alaska’s Right to Ivory Sales and Tradition Act” (2026-06-03) — Passed

When Mark Messmer Broke With the Republican Party

Mark Messmer has voted against the Republican majority on about 3.9% of party-line votes tracked. Recent examples:

• Voted No on “Energy and Water Development and Related Agencies Appropriations Act, 2026” (2025-09-03) while most Republicans voted Yea — Failed.
• Voted No on “Energy and Water Development and Related Agencies Appropriations Act, 2026” (2025-09-03) while most Republicans voted Yea — Failed.
• Voted No on “Energy and Water Development and Related Agencies Appropriations Act, 2026” (2025-09-03) while most Republicans voted Yea — Failed.
• Voted Aye on “Department of Defense Appropriations Act, 2026” (2025-07-18) while most Republicans voted No — Failed.
• Voted Nay on “Promoting Opportunities for Non-Traditional Capital Formation Act” (2025-06-23) while most Republicans voted Yea — Passed.

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