Joni Ernst
- Republican · Holds US Senate, Iowa
- 11
- Years in Congress
- 56
- Age
- 3
- Races won · in our records
- 0
- Races lost · in our records
Now
Not on the 2026 ballot
Career
Newest first| Year | Race | Result | Share | Lost to, or other round |
|---|---|---|---|---|
| 2020 | US Senate, IA | Won · primary won 98.6% | 51.7% | |
| 2014 | US Senate, IA | Won · primary won 56.1% | 52.1% | |
| 2012 | State Senate, IA | Won | 99.1% |
Filed with the FEC, no race in our files: 2026 US Senate, IA.
This is the record in our results files, FEC candidate lists and DIME, not a complete career. Results for other offices, earlier years and most primaries can be missing. A general that went to a runoff counts as neither a win nor a loss. Some races are matched to this person by name and seat, not by an ID, so one could belong to someone with the same name.
Spectrum
1 published measureThe marker is the one published measure below. The middle means centrist on that measure’s own scale, not the middle of Congress. How this works
By donors (CFscore, 2024 cycle)
Research estimate from Stanford DIME 4.0. Source
Method and limits
Published score 1.416 on a scale from −2.0 to 2.0, where 0 is the center. 11,796 donors. License: ODC-BY 1.0.
Places a candidate by who gave them money; candidates who share donors sit close together.
Reflects the donor network, not votes or views, and comes from past cycles, not a 2026 reading.
More about Joni Ernst
Offices held (2 terms and offices)
- 2015 to nowUS SenateRepublican
Committees (12 assignments)
Senate Committee on Agriculture, Nutrition, and Forestry
- Conservation, Forestry, Natural Resources, and Biotechnology subcommittee
- Livestock, Dairy, Poultry, and Food Safety subcommittee
- Chairman of the Rural Development, Energy, and Credit subcommittee
Senate Committee on Armed Services
- Cybersecurity subcommittee
- Chairman of the Emerging Threats and Capabilities subcommittee
- Personnel subcommittee
Senate Committee on Homeland Security and Governmental Affairs
- Disaster Management, District of Columbia, and Census subcommittee
- Border Management, Federal Workforce, and Regulatory Affairs subcommittee
Senate Committee on Small Business and Entrepreneurship, Chairman
Official pages (8 links)
Their own pages
Sources (8 sources)
unitedstates/congress-legislators (current)
Office, terms, committees, official links, age. Retrieved Oct 28, 2026. License: CC0-1.0.
Compiled by the @unitedstates project volunteers (rosters from official congressional sources) from official returns. Not an official source.
Stanford DIME public v4.0, recipients file (CFscores)
CFscores for candidates and officials; web/data/ideology/dime.json and aggregate.json. A research estimate by Adam Bonica, not an official measure. Retrieved Oct 29, 2026. License: ODC-BY 1.0.
Compiled by Adam Bonica, Stanford University Libraries (built from campaign finance filings) from official returns. Not an official source.
Bonica, Adam. 2024. Database on Ideology, Money in Politics, and Elections: Public version 4.0 [Computer file]. Stanford, CA: Stanford University Libraries. https://data.stanford.edu/dime .
unitedstates/congress-legislators
Race record. Retrieved Oct 29, 2026. License: CC0 1.0.
Election Wrld state legislative returns (web/data/results/sld); each row names its upstream source
Race record. Retrieved Oct 29, 2026. License: see sources.json.
FEC candidate master file (cnYY.zip bulk download)
Race record. Retrieved Oct 29, 2026. License: US government work, public domain.
Stanford DIME v4.0 recipients file
Race record. Retrieved Oct 29, 2026. License: ODC-BY 1.0.
MIT Election Data and Science Lab, U.S. Senate statewide 1976-2024
Race record. Retrieved Oct 29, 2026. License: CC0 1.0.
Election Wrld officials files (web/data/officials)
Race record. Retrieved Oct 29, 2026. License: see sources.json.
- Photo: Official congressional portrait via unitedstates/images (U.S. Government Publishing Office). Image · Public domain.
- Age: unitedstates/congress-legislators (CC0), official birthday field, counted to Nov 3, 2026. We show the age, never the birth date.
- Took office in Congress 2015-01-06. Basis: congress-legislators terms (CC0).
Officials files, 2026 candidate files, returns files, DIME, FEC candidate master and congress-legislators terms, as of 2026-10-29. Nothing about jobs, retirement, or reasons is recorded or inferred.
DataSources: DIME (ODC-BY), Results filesData as of Oct 29, 2026