Photo of Mark B. Messmer
R United States House · District 8 · Indiana On the 2026 ballot

Rep. Mark B. Messmer

Compare
Total votes
650
all sessions
Attendance
98%
13 missed
Near the chamber average
With party
99%
of cast votes
Higher than 94% of chamber peers
Bipartisan score
1%
crosses aisle rarely
Lower than 94% of chamber peers
Sponsored
236
bills & resolutions
Near the chamber average
Committees
10
assignments
236 bills and resolutions

Sponsored bills

Total
236
Primary
16
Co-sponsor
220
This page
236
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Co-sponsor HR 979
In committee · Illinois House · Co-sponsor
AM Radio for Every Vehicle Act of 2025

Maddy summaryThis bill requires all new passenger vehicles manufactured for sale in the U.S. to include AM radio as standard equipment (not an optional add-on) by 2027-2028, depending on manufacturer size. It mandates that AM radio receivers must be easily accessible to drivers and allows compliance through digital AM broadcast technology. During a transition period, manufacturers must clearly label vehicles without AM radio but cannot charge extra for this feature. The bill also mandates a GAO study on AM radio's role in emergency alerts and includes a 10-year sunset provision for the rule. It preempts state laws regarding AM radio access in vehicles.

In committee Nov 12, 2025 1 co-sponsor
Co-sponsor HRES 864
In committee · Illinois House · Co-sponsor
Honoring the service and sacrifice of America's veterans on Veterans Day, 2025.

Maddy summaryHRES 864 is a ceremonial resolution honoring U.S. veterans on Veterans Day 2025. It does not create new laws or policies but formally recognizes veterans' service and sacrifice, calling on all Americans to observe Veterans Day. The resolution references historical context about Veterans Day's origins (from Armistice Day to honoring all veterans) but contains no concrete policy changes. It directly addresses the general public, urging them to participate in the observance. As a non-binding resolution, it affects no specific individuals or groups through legislative action.

In committee Nov 7, 2025 1 co-sponsor
Co-sponsor HRES 866
In committee · Illinois House · Co-sponsor
Condemning the persecution of Christians in Nigeria and standing ready to support President Donald J. Trump in taking decisive action to end the existential threat that persecuted Christians face in Nigeria.

Maddy summaryHRES 866 is a non-binding House resolution condemning the systematic persecution of Christians in Nigeria by groups like Boko Haram and Fulani militants, and criticizing Nigeria's government for failing to protect Christian communities or acknowledge the violence. It calls on the U.S. government to support President Trump in using diplomatic, economic, and security tools to pressure Nigeria to end impunity for attacks, protect Christians, return displaced persons, and repeal blasphemy laws. The resolution specifically demands action against religiously motivated violence, including the release of those imprisoned for their faith, and urges coordination with international partners for humanitarian aid. It does not create new laws but expresses congressional support for U.S. policy actions targeting Nigeria's religious freedom violations.

In committee Nov 7, 2025 1 co-sponsor
Co-sponsor HR 5801
In committee · Illinois House · Co-sponsor
Shutdown Fairness Act

Maddy summaryThe Shutdown Fairness Act ensures that certain federal employees performing essential work during government funding gaps receive their regular pay. It applies directly to "excepted employees" (such as border security personnel, air traffic controllers, and military members on active duty) who must work when appropriations lapse. The bill appropriates funds from the Treasury to cover their standard pay, benefits, and allowances during these periods, without requiring new annual appropriations. These payments are later charged to the agency’s regular budget when funding is restored, ensuring no additional costs to Congress. The law takes effect retroactively from September 30, 2025.

In committee Oct 21, 2025 1 co-sponsor
Co-sponsor HR 2462
In committee · Illinois House · Co-sponsor
Black Vulture Relief Act

Maddy summaryThe Black Vulture Relief Act authorizes livestock producers and their employees to remove or kill black vultures (Coragyps atratus) that are causing or likely to cause harm to livestock, bypassing standard protections under the Migratory Bird Treaty Act. It prohibits using poison for this purpose and requires annual reports to the U.S. Fish and Wildlife Service about such actions, using a simplified form. The law specifically targets vultures threatening livestock as defined in existing federal agriculture law, with reporting deadlines starting after a form is developed by the Fish and Wildlife Service.

In committee Oct 3, 2025 1 co-sponsor
Co-sponsor HR 842
In committee · Illinois House · Co-sponsor
Nancy Gardner Sewell Medicare Multi-Cancer Early Detection Screening Coverage Act

Maddy summaryThis bill adds Medicare coverage for multi-cancer early detection screening tests (blood or biological tests analyzing cell-free DNA) starting January 1, 2028. It directly affects Medicare beneficiaries aged 68 and older (starting in 2028, with the age limit increasing by 1 year annually), requiring tests to be FDA-cleared and deemed reasonable/necessary by the Secretary for early cancer detection across multiple organ sites. Payment will initially match current stool DNA test rates before 2031, then shift to a lower rate or new payment system after 2031, with limits preventing more than one test per year. The bill explicitly states it does not alter coverage for existing cancer screenings like breast, colorectal, or prostate cancer tests.

In committee Oct 3, 2025 1 co-sponsor
Co-sponsor HR 38
In committee · Illinois House · Co-sponsor
Constitutional Concealed Carry Reciprocity Act of 2025

Maddy summaryThis bill would require all states to recognize valid concealed carry permits issued by other states, allowing permit holders to carry concealed handguns (excluding machine guns) in any state that either issues such permits or doesn't prohibit concealed carry. It directly affects law-abiding gun owners with valid permits from their home state, ensuring they can carry in states with similar permit systems or no prohibitions. Key provisions include treating valid permit documents as proof of legal carry (reducing officer stops), shifting the burden of proof to prosecutors if challenged, and allowing civil lawsuits for violations with attorney's fee awards. The bill does not override state laws restricting firearms on private property or government land, nor does it affect federal gun restrictions like those in section 922(q).

In committee Oct 3, 2025 1 co-sponsor
Co-sponsor HRES 719
Passed · Illinois House · Co-sponsor
Honoring the life and legacy of Charles Charlie James Kirk.

Maddy summaryHRES 719 is a House resolution honoring Charles "Charlie" James Kirk, the founder of Turning Point USA who was assassinated on September 10, 2025. The resolution condemns his assassination and all political violence, extends condolences to his family, and calls on Americans to reject violence while promoting civil discourse. It specifically recognizes Kirk's legacy as a defender of constitutional principles and his role in inspiring youth through free speech and faith-based civic engagement. As a commemorative resolution, it does not enact policy changes but formally expresses the House's stance on honoring his life and legacy.

Passed Sep 19, 2025 1 co-sponsor
Co-sponsor HR 5512
In committee · Illinois House · Co-sponsor
No Shari’a Act

Maddy summaryThis bill prohibits U.S. courts from enforcing judgments based on Shari'a or any foreign law if they conflict with constitutional rights, particularly in family law cases like divorce, child custody, or inheritance. It requires courts to apply only U.S. law when foreign legal systems would violate fundamental rights such as due process, equal protection, or freedom from coercion. Contracts may still reference foreign law, but enforcement is blocked if it infringes constitutional protections. The law aims to ensure all court decisions comply with U.S. constitutional standards nationwide.

In committee Sep 19, 2025 1 co-sponsor
Co-sponsor HR 5485
In committee · Illinois House · Co-sponsor
Second Chance at Life Act of 2025

Maddy summaryThis federal bill requires abortion providers to inform patients about potential reversal of mifepristone-based chemical abortions (the two-drug process) at least 24 hours before the procedure. After the first drug is dispensed, providers must give written instructions stating that reversal may be possible if the second pill hasn't been taken. Facilities must post visible signs about reversal options, and the government must maintain a website with reversal resources. Violations allow affected patients or family members to sue for damages.

In committee Sep 18, 2025 1 co-sponsor
Showing 101 to 110 of 236 bills
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