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Portrait of Robert F. Onder, Jr.Photo: unitedstates.github.io

MO · Officeholder

Robert F. Onder, Jr.

RU.S. Representative · MO-3

On the ballot Nov 3, 2026: U.S. House · Missouri's 3rd District

Biography

Bob Onder is the incumbent Republican U.S. Representative for Missouri's 3rd District. A physician and attorney who ran an allergy and asthma practice for more than 30 years, he served in the Missouri House and, from 2015 to 2023, the Missouri Senate before being elected to Congress in 2024; he sits on the Judiciary, Transportation and Infrastructure, and Education and Workforce committees.[1][2][3][4]

Onder was born on January 6, 1962, and graduated from St. Louis University High School in 1980.[4] He earned a bachelor's degree in economics and biology from Washington University in St. Louis (1983), an M.D. from Washington University School of Medicine (1987), and a J.D. from Saint Louis University School of Law.[2][3] In 1992 he opened a private practice specializing in allergy, asthma and clinical immunology, where he says he served patients for over 30 years, and he also ran a small business.[2][3]

Onder was elected to the Missouri House of Representatives in 2006 (District 13) and served one term, 2007 to 2009; he authored a 2008 law barring sanctuary cities in Missouri.[3][4] He left the state House to run for Missouri's 9th Congressional District in 2008 and lost the Republican primary to Blaine Luetkemeyer.[4] Onder was elected to the Missouri Senate in 2014 and re-elected in 2018, serving from 2015 until he was term-limited in 2022; he was Assistant Majority Floor Leader, chaired the General Laws Committee and was vice chair of the Judiciary Committee.[2][3][4] In the Senate he pushed the 2019 Missouri Stands for the Unborn Act, which banned abortion at eight weeks of pregnancy or later and was signed by Gov. Mike Parson.[4] He withdrew from the 2022 Republican primary for St. Charles County Executive, and entered the 2024 race for Lieutenant Governor before leaving it to run for Congress.[4]

After Rep. Blaine Luetkemeyer announced he would not run again, Onder won a seven-candidate 2024 Republican primary for Missouri's 3rd District and then the general election with 61.3% of the vote; he was sworn in on January 3, 2025.[3][4] According to his House biography, he lives in St. Charles County with his wife, Allison; they have six adult children.[3]

  1. 1.United States House of Representatives elections in Missouri, 2026 · Ballotpedia · 2026-09-25 Reference
  2. 2.Bob Onder · Ballotpedia · 2026-09-25 Reference
  3. 3.About · Office of Rep. Bob Onder · 2026-10-21 Official record
  4. 4.Bob Onder · Wikipedia · 2026-10-21 Reference

Researched from the cited sources on 2026-10-21.

On the ballot

Votes by issue

Their recorded votes on bills that divided the chamber (unanimous votes left out), grouped by topic. A bill can sit under more than one topic. "With" and "against" compare each vote with how most Republicans voted. How topics are assigned

Where they stood out

Voted against most of their party on 7 of 462 party-divided votes on file.

Most often on: Foreign affairs & defense (3), Climate & energy (3), Jobs & cost of living (2)

  • Amendment (Boebert) to H.R. 8800 — National Defense Authorization Act for Fiscal Year 2027

    A yes vote supported an H.R. 8800 amendment that strikes section 518, a pilot program using voice-based risk assessment technology to identify servicemembers for drug testing. (AI-written)

    What it does: National Defense Authorization Act for Fiscal Year 2027 This bill sets forth policies and authorities for FY2027 for Department of Defense (DOD) programs, activities, and military construction as well as the national…

    Voted yes · most Republicans voted no · Democrats 175–37, Republicans 90–123

    Jul 21, 2026Official record ↗

  • Nationwide Consumer and Fuel Retailer Choice Act

    What it does: Nationwide Consumer and Fuel Retailer Choice Act of 2025 This bill amends the Clean Air Act to address the limitations on Reid Vapor Pressure (a measure of gasoline's volatility) that are placed on gasoline during the…

    Voted no · most Republicans voted yes · Democrats 95–113, Republicans 122–90

    May 13, 2026Official record ↗

  • Amendment (Luna) to H.R. 7567 — Farm, Food, and National Security Act of 2026

    A yes vote adopted an amendment (Luna) striking the bill’s sections on pesticide label uniformity, state authority over pesticides, and lawful use of authorized pesticides. (AI-written)

    What it does: Farm, Food, and National Security Act of 2026 This bill (commonly known as the farm bill) reauthorizes through FY2031 and modifies Department of Agriculture programs that address commodity support, conservation, trade…

    Voted yes · most Republicans voted no · Democrats 207–6, Republicans 73–135

    Apr 30, 2026Official record ↗

  • Amendment (Bentz) to H.R. 7567 — Farm, Food, and National Security Act of 2026

    A yes vote adopted an amendment (Bentz) revising the Renewable Fuel Standard’s “renewable biomass” definition to include forest-product mill residuals and trees, slash and storm debris from non-federal, National Forest System, public and tribal lands. (AI-written)

    What it does: Farm, Food, and National Security Act of 2026 This bill (commonly known as the farm bill) reauthorizes through FY2031 and modifies Department of Agriculture programs that address commodity support, conservation, trade…

    Voted no · most Republicans voted yes · Democrats 37–176, Republicans 172–40

    Apr 30, 2026Official record ↗

  • Fallen Servicemembers Religious Heritage Restoration Act

    What it does: Foreign Intelligence Accountability Act and the Anti-CBDC Surveillance State Act This bill reauthorizes Title VII of the Foreign Intelligence Surveillance Act (FISA) until April 30, 2029, and expands protections relat…

    Voted no · most Republicans voted yes · Democrats 42–169, Republicans 192–22

    Apr 29, 2026Official record ↗

How this is counted

Their votes on the most contested roll calls

The votes in their chamber that came out closest and most divided by party, among those they voted on. How we rank

See all their split votes

Substantive votes concern legislation or nominations; procedural votes concern how the chamber considers them. A Yes vote applies to the motion shown, which may not be final passage.

S. 2403 · U.S. HOUSE

Retire through Ownership Act

YesVOTED

Motion: On Motion to Suspend the Rules and Pass

A yes vote suspended the House rules and passed S. 2403, the Retire through Ownership Act, under a fast-track procedure that requires a two-thirds majority. (AI-written)

Retire through Ownership Act This bill allows the fiduciary of an Employee Stock Ownership Plan (ESOP) to rely on a valuation provided by an independent valuation expert or business appraiser in determining the fair market value of the plan's securities if the securities are not traded on a national securities exchange (i.

Official summary — read the bill text ↗
Passed 401–14·Substantive·Sep 16, 2026Roll call ↗
H.R. 9497 · U.S. HOUSE

Water Resources Development Act

YesVOTED

Motion: On Motion to Suspend the Rules and Pass, as Amended

A yes vote suspended the House rules and passed H.R. 9497, the Water Resources Development Act, as amended, under a fast-track procedure that requires a two-thirds majority. (AI-written)

Water Resources Development Act of 2026 This bill authorizes and modifies certain water resource infrastructure projects and programs of the U.S. Army Corps of Engineers and makes related requirements.

Official summary — read the bill text ↗
Passed 415–9·Substantive·Sep 16, 2026Roll call ↗
H.R. 9340 · U.S. HOUSE

Ratepayer Protection Act

YesVOTED

Motion: On Motion to Suspend the Rules and Pass, as Amended

A yes vote suspended the House rules and passed H.R. 9340, the Ratepayer Protection Act, as amended, under a fast-track procedure that requires a two-thirds majority. (AI-written)

Ratepayer Protection Act The bill requires state utility regulators and nonregulated utilities to consider implementing a standard to hold certain large-load customers responsible for the costs associated with any generation, transmission, or distribution upgrade of electric service necessary to serve such customers.

Official summary — read the bill text ↗
Passed 417–3·Substantive·Sep 16, 2026Roll call ↗
H.J.Res. 213 · U.S. HOUSE

Providing for congressional disapproval under chapter 8 of title 5, United States Code, of the rule issued by the Environmental Protection Agency relating to the “California State Nonroad Engine Pollution Control Standards; Commercial Harbor Craft Regulations; Notice of Decision”

YesVOTED

Motion: On Passage

This joint resolution revokes the partial authorization granted to the California Air Resources Board (CARB) to amend its Commercial Harbor Craft regulation.

Official summary — read the bill text ↗
Passed 214–208·Substantive·Sep 16, 2026Roll call ↗
H.R. 10326 · U.S. HOUSE

PROOF Act

YesVOTED

Motion: On Passage

Preventing Rip-offs and Obtaining Oversight of Funds Act or the PROOF Act This bill requires states to provide such information as the Department of Justice (DOJ) may require for the purpose of investigating or prosecuting alleged fraud committed with regard to certain federally funded programs.

Official summary — read the bill text ↗
Passed 217–207·Substantive·Sep 16, 2026Roll call ↗
H.R. 9576 · U.S. HOUSE

National Fraud Enforcement Division Act

YesVOTED

Motion: On Passage

National Fraud Enforcement Division Act of 2026 This bill provides statutory authority for the National Fraud Enforcement Division within the Department of Justice (DOJ). The division investigates and prosecutes fraud against taxpayer dollars and taxpayer-funded programs.

Official summary — read the bill text ↗
Passed 352–72·Substantive·Sep 16, 2026Roll call ↗
H.R. 5334 · U.S. HOUSE

An Act to amend the Internal Revenue Code of 1986 to allow early childhood educators to take the educator expense deduction, and for other purposes

YesVOTED

Motion: On Motion to Concur in the Senate Amendments

A yes vote agreed to the Senate's amendments to H.R. 5334, which add Russia sanctions, higher duties and an Iran Sanctions Act extension to the early-childhood educator deduction, sending the bill to the president. (AI-written)

Lindsey O. Graham Sanctioning Russia and Iran Act of 2026 This bill imposes a variety of sanctions, tariffs, and prohibitions related to Russia, extends an Iran-related sanctions law, and expands a tax deduction for teacher expenses to include early childhood educators.

Latest official summary of the bill (as amended) — read the bill text ↗
Passed 262–159·Substantive·Sep 16, 2026Roll call ↗
H.Con.Res. 93 · U.S. HOUSE

Directing the President, pursuant to section 5(c) of the War Powers Resolution, to remove United States Armed Forces from hostilities with Iran

NoVOTED

Motion: On Agreeing to the Resolution

This concurrent resolution directs the President to remove U.S. Armed Forces from hostilities against Iran unless explicitly authorized by a declaration of war or a congressional authorization for use of military force against Iran.

Official summary — read the bill text ↗
Passed 220–204·Substantive·Sep 15, 2026Roll call ↗
H.J.Res. 210 · U.S. HOUSE

Providing for congressional disapproval under chapter 8 of title 5, United States Code, of the rule submitted by the Environmental Protection Agency relating to “California State Nonroad Engine Pollution Control Standards; Ocean-Going Vessels At-Berth; Notice of Decision”

YesVOTED

Motion: On Passage

This joint resolution revokes the authorization granted to the California Air Resources Board (CARB) to amend its Ocean-Going Vessels At-Berth Regulation.

Official summary — read the bill text ↗
Passed 216–211·Substantive·Sep 15, 2026Roll call ↗
H.R. 9500 · U.S. HOUSE

Tax Relief for Fraud Victims Act

NoVOTED

Motion: On Motion to Suspend the Rules and Pass, as Amended

A yes vote suspended the House rules and passed H.R. 9500, the Tax Relief for Fraud Victims Act, as amended, under a fast-track procedure that requires a two-thirds majority. (AI-written)

Tax Relief for Fraud Victims Act This bill expands the federal tax deduction for personal casualty and theft losses by eliminating certain limits, including the requirement that such losses arise from certain disasters.

Official summary — read the bill text ↗
Passed 408–17·Substantive·Sep 15, 2026Roll call ↗

Showing 10 of 634 votes in this collection. Coverage may be incomplete; each entry links to the official record.