MO-3
Missouri District 3
Tue, Nov 3 · Seat held by Robert F. Onder, Jr. Republican since Jan 2025
Bethany E MannDemocraticRobert F. Onder, Jr.Republican · IncumbentAge 64 · 1 year in Congress
Bethany E Mann 35.3Robert F. Onder, Jr. 61.3
Last result · 2024 generalNo published poll names both candidates.
Show all 3 candidates on the ballot
- Bethany E MannDemocratic
- Robert F. Onder, Jr.IncumbentRepublican
- Jim HigginsLibertarian
Showing major-party nominees, incumbents and candidates with 5%+ in the latest poll or comparable fundraising.
- Last election
- Robert F. Onder, Jr. (Republican) won by 26.0 points, 2024
- Margin since 2022
- 4.2 points toward Democrats
- On the 2026 ballot
- 3 candidates
Side by side
Mann left, Onder right- Total receipts, 2025-2026 cycle, through Oct 14
- $87K
- $1.1M
- Cash on hand
- $6K
- $526K
- Donor-based spectrum
- LiberalCentristConservativeMannOnder
- Record
- 0-2
- 3-1
- Years in politics
- Not available
- 1
- Age on Election Day
- Not available
- 64
Bethany E Mann on fec.gov. Robert F. Onder, Jr. on fec.gov. One or more are matched to the FEC by name, party and seat, so a total could belong to someone else.
How these are counted
Total receipts line of each candidate’s principal campaign committee, 2025-2026 cycle. Other sites may show career, six-year or all-committee totals, which differ. The spectrum is a published research score, not our rating. How this works. Record is wins and losses in the races in our results files, the same count as each profile.
More about this race
Candidates on the ballot
- Bethany E MannDemocratic
- Robert F. Onder, Jr.IncumbentRepublican
- Jim HigginsLibertarian
Source: sos.mo.gov (PDF), dated Aug 25
Shift since 2022: 4.2 points toward Democrats (Republican by 30.2 in 2022, Republican by 26.0 in 2024).
All Missouri districts
Select a shape for details. Arrow keys move between shapes.
2024 US House margin
- D 15+ pts
- D 5 to 15 pts
- D under 5 pts
- R under 5 pts
- R 5 to 15 pts
- R 15+ pts
- Other winner
- No data
Show these districts as a list (8)
- Missouri District 1· Wesley Bell (D), Democratic by 57.5 points, 2024
- Missouri District 2· Ann Wagner (R), Republican by 12.0 points, 2024
- Missouri District 3· Robert F. Onder, Jr. (R), Republican by 26.0 points, 2024
- Missouri District 4· Mark Alford (R), Republican by 44.7 points, 2024
- Missouri District 5· Emanuel Cleaver (D), Democratic by 23.8 points, 2024
- Missouri District 6· Sam Graves (R), Republican by 43.8 points, 2024
- Missouri District 7· Eric Burlison (R), Republican by 45.3 points, 2024
- Missouri District 8· Jason Smith (R), Republican by 54.4 points, 2024
Map settings
Vote in Missouri
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History (25 elections for this seat)
- Votes for listed candidates
- 392,463
- Election day
- November 5, 2024
- District map
- Same as today
US House, Missouri District 3, 2024, every candidate Candidate Party Votes and share Share RepublicanRobert F. Onder, Jr.WonName as filed: Bob Onder Republican 240,62061.3% DemocraticBethany E. Mann Democratic 138,53235.3% LibertarianJordan Rowden Libertarian 9,2982.4% GreenWilliam Hastings Green 4,0131.0% - Votes for listed candidates
- 277,597
- Election day
- November 8, 2022
- District map
- Same as today
US House, Missouri District 3, 2022, every candidate Candidate Party Votes and share Share RepublicanBlaine LuetkemeyerWon Republican 180,74665.1% DemocraticBethany Mann Democratic 96,85134.9% - Votes for listed candidates
- 407,348
- Election day
- November 3, 2020
- District map
- Older district map (2012 to 2020)
US House, Missouri District 3, 2020, every candidate Candidate Party Votes and share Share RepublicanBlaine LuetkemeyerWon Republican 282,86669.4% DemocraticMegan Rezabek Democratic 116,09528.5% LibertarianLeonard J Steinman II Libertarian 8,3442.0% Thomas "Tom" Clapp Write-in 430.0% - Votes for listed candidates
- 324,608
- Election day
- November 6, 2018
- District map
- Older district map (2012 to 2020)
US House, Missouri District 3, 2018, every candidate Candidate Party Votes and share Share RepublicanBlaine LuetkemeyerWon Republican 211,24365.1% DemocraticKaty Geppert Democratic 106,58932.8% LibertarianDonald V Stolle Libertarian 6,7762.1% - Votes for listed candidates
- 368,333
- Election day
- November 8, 2016
- District map
- Older district map (2012 to 2020)
US House, Missouri District 3, 2016, every candidate Candidate Party Votes and share Share RepublicanBlaine LuetkemeyerWon Republican 249,86567.8% DemocraticKevin Miller Democratic 102,89127.9% LibertarianDan Hogan Libertarian 11,9623.2% OtherDoanita Simmons Other 3,6051.0% Scattered write-insName as filed: Writein Write-in 100.0% - Votes for listed candidates
- 191,620
- Election day
- November 4, 2014
- District map
- Older district map (2012 to 2020)
US House, Missouri District 3, 2014, every candidate Candidate Party Votes and share Share RepublicanBlaine LuetkemeyerWon Republican 130,94068.3% DemocraticCourtney Denton Democratic 52,02127.1% LibertarianSteven Hedrick Libertarian 8,5934.5% Scattered write-insName as filed: Writein Write-in 660.0% - Votes for listed candidates
- 338,385
- Election day
- November 6, 2012
- District map
- Older district map (2012 to 2020)
US House, Missouri District 3, 2012, every candidate Candidate Party Votes and share Share RepublicanBlaine LuetkemeyerWon Republican 214,84363.5% DemocraticEric C Mayer Democratic 111,18932.9% LibertarianSteven Wilson Libertarian 12,3533.7% - Votes for listed candidates
- 203,085
- Election day
- November 2, 2010
- District map
- Older district map (2002 to 2010)
US House, Missouri District 3, 2010, every candidate Candidate Party Votes and share Share DemocraticRuss CarnahanWon Democratic 99,39848.9% RepublicanEd Martin Republican 94,75746.7% LibertarianSteve R Hedrick Libertarian 5,7722.8% OtherNicholas J "Nick" Ivanovich Other 3,1551.6% Scattered write-insName as filed: Writein Write-in 30.0% - Votes for listed candidates
- 305,071
- Election day
- November 4, 2008
- District map
- Older district map (2002 to 2010)
US House, Missouri District 3, 2008, every candidate Candidate Party Votes and share Share DemocraticRuss CarnahanWon Democratic 202,47066.4% RepublicanChris Sander Republican 92,75930.4% LibertarianKevin C Babcock Libertarian 5,5181.8% OtherCynthia "Cindy" Redburn Other 4,3241.4% - Votes for listed candidates
- 221,448
- Election day
- November 7, 2006
- District map
- Older district map (2002 to 2010)
US House, Missouri District 3, 2006, every candidate Candidate Party Votes and share Share DemocraticRuss CarnahanWon Democratic 145,21965.6% RepublicanDavid Bertelsen Republican 70,18931.7% LibertarianR Christophel Libertarian 4,2131.9% OtherDavid Sladky Other 1,8270.8% - Votes for listed candidates
- 277,916
- Election day
- November 2, 2004
- District map
- Older district map (2002 to 2010)
US House, Missouri District 3, 2004, every candidate Candidate Party Votes and share Share DemocraticRuss CarnahanWon Democratic 146,89452.9% RepublicanBill Federer Republican 125,42245.1% LibertarianKevin C Babcock Libertarian 4,3671.6% OtherWilliam J Renaud Other 1,2220.4% OtherJoseph L Badaracco Other 110.0% - Votes for listed candidates
- 206,878
- Election day
- November 5, 2002
- District map
- Older district map (2002 to 2010)
US House, Missouri District 3, 2002, every candidate Candidate Party Votes and share Share DemocraticRichard A GephardtWon Democratic 122,18159.1% RepublicanCatherine S Enz Republican 80,55138.9% LibertarianDaniel "Dan" Byington Libertarian 4,1462.0% - Votes for listed candidates
- 254,539
- Election day
- November 7, 2000
- District map
- Older district map (1992 to 2000)
US House, Missouri District 3, 2000, every candidate Candidate Party Votes and share Share DemocraticRichard A GephardtWon Democratic 147,22257.8% RepublicanBill Federer Republican 100,96739.7% GreenMary Maroney Green 3,2661.3% LibertarianMichael H Crist Libertarian 2,2450.9% OtherAnthony "Tony" J Windisch Other 8390.3% - Votes for listed candidates
- 176,099
- Election day
- November 3, 1998
- District map
- Older district map (1992 to 2000)
US House, Missouri District 3, 1998, every candidate Candidate Party Votes and share Share DemocraticRichard A GephardtWon Democratic 98,28755.8% RepublicanWilliam J Federer Republican 74,00542.0% LibertarianMichael H Crist Libertarian 2,2751.3% OtherJoseph C Keller Other 1,5320.9% - Votes for listed candidates
- 232,755
- Election day
- November 5, 1996
- District map
- Older district map (1992 to 2000)
US House, Missouri District 3, 1996, every candidate Candidate Party Votes and share Share DemocraticRichard A GephardtWon Democratic 137,30059.0% RepublicanDeborah Lynn "Debbie" Wheelehan Republican 90,20238.8% LibertarianMichael H Crist Libertarian 3,9661.7% OtherJames E Keersemaker Other 1,2870.6% - Votes for listed candidates
- 203,940
- Election day
- November 8, 1994
- District map
- Older district map (1992 to 2000)
US House, Missouri District 3, 1994, every candidate Candidate Party Votes and share Share DemocraticRichard A GephardWon Democratic 117,60157.7% RepublicanGary Gill Republican 80,97739.7% LibertarianBradley Ems Libertarian 5,3622.6% - Votes for listed candidates
- 271,834
- Election day
- November 3, 1992
- District map
- Older district map (1992 to 2000)
US House, Missouri District 3, 1992, every candidate Candidate Party Votes and share Share DemocraticRichard A GephardtWon Democratic 174,00064.0% RepublicanMack Holekamp Republican 90,00633.1% LibertarianRobert Stockhausen Libertarian 7,8282.9% - Votes for listed candidates
- 156,609
- Election day
- November 6, 1990
- District map
- Older district map (1982 to 1990)
US House, Missouri District 3, 1990, every candidate Candidate Party Votes and share Share DemocraticRichard A GephardtWon Democratic 88,95056.8% RepublicanMalcolm L "Mack" Holekamp Republican 67,65943.2% - Votes for listed candidates
- 239,203
- Election day
- November 8, 1988
- District map
- Older district map (1982 to 1990)
US House, Missouri District 3, 1988, every candidate Candidate Party Votes and share Share DemocraticRichard A GephardtWon Democratic 150,20562.8% RepublicanMark F "Thor" Hearne Republican 86,76336.3% LibertarianLloyd Sloan Libertarian 2,1280.9% Scattered write-insName as filed: Writein Write-in 1070.0% - Votes for listed candidates
- 168,785
- Election day
- November 4, 1986
- District map
- Older district map (1982 to 1990)
US House, Missouri District 3, 1986, every candidate Candidate Party Votes and share Share DemocraticRichard A GephardtWon Democratic 116,40369.0% RepublicanRoy Amelung Republican 52,38231.0% - Votes for listed candidates
- 193,537
- Election day
- November 6, 1984
- District map
- Older district map (1982 to 1990)
US House, Missouri District 3, 1984, every candidate Candidate Party Votes and share Share DemocraticRichard A GephardtWon Democratic 193,537100.0% - Votes for listed candidates
- 168,954
- Election day
- November 2, 1982
- District map
- Older district map (1982 to 1990)
US House, Missouri District 3, 1982, every candidate Candidate Party Votes and share Share DemocraticRichard A GephardtWon Democratic 131,56677.9% RepublicanRichard Foristel Republican 37,38822.1% - Votes for listed candidates
- 184,409
- Election day
- November 4, 1980
- District map
- Older district map (1972 to 1980)
US House, Missouri District 3, 1980, every candidate Candidate Party Votes and share Share DemocraticRichard A GephardtWon Democratic 143,13277.6% RepublicanRobert A Cedarburg Republican 41,27722.4% - Votes for listed candidates
- 148,446
- Election day
- November 7, 1978
- District map
- Older district map (1972 to 1980)
US House, Missouri District 3, 1978, every candidate Candidate Party Votes and share Share DemocraticRichard A GephardtWon Democratic 121,56581.9% RepublicanLee Buchschacher Republican 26,88118.1% - Votes for listed candidates
- 180,732
- Election day
- November 2, 1976
- District map
- Older district map (1972 to 1980)
US House, Missouri District 3, 1976, every candidate Candidate Party Votes and share Share DemocraticRichard A GephardtWon Democratic 115,10963.7% RepublicanJoseph L Badaracco Republican 65,62336.3%
All rows: MIT Election Data and Science Lab, U.S. House 1976-2024, retrieved Oct 28, 2026
District numbers are reused after each redistricting, so rows on older lines cover different territory than today's Missouri District 3.
Download and cite
Cite this page
Election Wrld. (2026). Missouri District 3, US House results. https://www.electionwrld.com/mo/congress/3. Retrieved October 30, 2026.
Embed this seat
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Sources
Sources
- Used for
- web/data/results/house/{ST}.json. The Dataverse API refuses this file behind a guestbook, so the identical file was taken from two public GitHub copies (Hackquantumcpp/snoutcounter-midterms-2026-model data/1976-2024-house.csv and sta199-f26/sta199-f26.github.io _data/gerrymander/1976-2024-house.tab), which are byte-identical to each other and match the md5 a9566ac393913a1af343284e837c17bb that Dataverse lists for dataset version 15.0 (2026-03-09). sha256 76eec42483ee9f0fc5cf6e377442c783d1ae6eefa929729fd6561a69bab47f2a.
- License
- CC0 1.0
- Retrieved
- October 28, 2026
- Link
- https://doi.org/10.7910/DVN/IG0UN2
- Used for
- cd.topo.json, sld/*.topo.json
- License
- US Census Bureau, public domain
- Retrieved
- October 28, 2026
- Link
- https://tigerweb.geo.census.gov/arcgis/rest/services/TIGERweb/Legislative/MapServer
- Used for
- web/data/officials/congress.json (name, party, bioguide, official site, service start) and web/data/people (birth year, committees, social media handles and profile links; links only, nothing copied from the platforms). As-of: the files saved in data/raw/people on 2026-10-29.
- License
- CC0-1.0
- Retrieved
- October 28, 2026
- Link
- https://unitedstates.github.io/congress-legislators/legislators-current.json
DataState data (JSON)Sources: MIT Election Data and Science Lab, U.S. House 1976-2024, FEC, DIME (ODC-BY), Portraits: unitedstates/images (public domain)Data as of Oct 28, 2026