Senator · Iowa

Joni Ernst

Joni Ernst is a Republican senator from Iowa, in Congress since 2015. In the 119th Congress, 915 roll calls were held while they served; they missed 21, and cast 821 of 823 party-unity votes with the majority of their caucus.

Party
Republican
Chamber
Senate
Current
In Congress since
Jan 6, 2015
Term ends
Jan 3, 2027
Photo: Government Publishing Office (public domain)

Record by Congress

Counts with their denominators for each Congress and chamber served. Ranks are among members who served most of that Congress (100 or more roll calls): rank 1 did it most often. A description, not a grade.

CongressRoll callsMissedVotes with partySponsoredCosponsored across the aisle
119th CongressSenate9152.3%21 of 915 · rank 49 of 101100%821 of 823 · rank 27 of 1011001 became law24%50 of 208
118th CongressSenate6915.4%37 of 691 · rank 31 of 10195%479 of 504 · rank 75 of 101810 became law31%94 of 299
117th CongressSenate9493.3%31 of 949 · rank 40 of 10094%694 of 742 · rank 73 of 100761 became law36%149 of 419

Ideology (DW-NOMINATE)

Voteview's DW-NOMINATE first dimension estimates where members sit from all their roll calls: liberal (−1) to conservative (+1). It describes voting patterns, not views. Shown for the 119th Congress (Senate), with each party's median and the chamber's range.

Liberal −1+0.54+1 Conservative

Source: Lewis, Jeffrey B., Keith Poole, Howard Rosenthal, Adam Boche, Aaron Rudkin, and Luke Sonnet (2026). Voteview: Congressional Roll-Call Votes Database. https://voteview.com/

Votes against their party

The latest party-unity votes on bills and amendments where the member voted yea or nay against most of their caucus.

  1. Jan 30, 2026· Senate· Amendments· On the Amendment· Amendment Rejected 32–67· Against party
  2. Oct 9, 2025· Senate· Amendments· On the Amendment· Amendment Rejected 51–46· Against party
  3. Feb 13, 2024· Senate· Passage· On Passage of the Bill· Bill Passed 70–29· Against party
  4. Feb 12, 2024· Senate· Amendments· On the Amendment· Amendment Agreed to 66–33· Against party
  5. Nov 1, 2023· Senate· Passage· On Passage of the Bill· Bill Defeated 43–53· Against party
  6. Jul 19, 2023· Senate· Amendments· On the Amendment· Amendment Rejected 39–60· Against party
  7. Jun 1, 2023· Senate· Passage· On Passage of the Bill· Bill Passed 63–36· Against party
  8. Dec 22, 2022· Senate· Amendments· On the Amendment· Amendment Agreed to 73–24· Against party

Recent votes

The latest roll calls on bills and amendments, with the member's recorded position.

  1. Sep 28, 2026· Senate· Passage· On Passage of the Bill· Bill Passed 77–22
  2. Sep 28, 2026· Senate· Amendments· On the Amendment· Amendment Rejected 47–52
  3. Sep 28, 2026· Senate· Amendments· On the Amendment· Amendment Rejected 49–50
  4. Sep 28, 2026· Senate· Amendments· On the Amendment· Amendment Rejected 42–54
  5. Sep 28, 2026· Senate· Amendments· On the Amendment· Amendment Rejected 1–94
  6. Sep 28, 2026· Senate· Amendments· On the Amendment· Amendment Agreed to 96–1
  7. Sep 24, 2026· Senate· Passage· On the Concurrent Resolution· Concurrent Resolution Rejected 49–50
  8. Sep 24, 2026· Senate· Amendments· On the Amendment· Amendment Agreed to 77–23
  9. Aug 8, 2026· Senate· Passage· On Passage of the Bill· Bill Passed 90–6
  10. Aug 7, 2026· Senate· Passage· On Passage of the Bill· Bill Passed 86–11
  11. Aug 7, 2026· Senate· Amendments· On the Amendment· Amendment Rejected 32–64
  12. Jul 30, 2026· Senate· Passage· On the Resolution· Resolution Agreed to 50–47

Sponsored bills

Bills and resolutions the member introduced as sponsor in the loaded Congresses. Volume is not quality: most measures never leave committee.

257 sponsored · 2 became law

How far they got

  1. Introduced22086%
  2. Reported by committee103.9%
  3. Passed one chamber228.6%
  4. Passed both chambers20.8%
  5. Sent to the President10.4%
  6. Became law20.8%

Policy areas

  1. Government Operations and Politics61
  2. Commerce27
  3. Armed Forces and National Security25
  4. Agriculture and Food18
  5. Health17
  6. Immigration16
  7. International Affairs15
  8. Taxation15

Latest activity

  1. S. 766 Billion Dollar Boondoggle Act of 2025
    Sent to the President· Government Operations and Politics· Sep 29, 2026
  2. S.Res. 916 A resolution designating the week of September 21, 2026, as the "Ray Gaesser Memorial Farm Safety Week" to recognize the life and legacy of Ray Gaesser, who passed away in a tragic farming accident, and promote farm safety in the honor of Ray Gaesser.
    Passed one chamber· Sep 28, 2026
  3. S. 5314 No Cash for Cohabitating Kins of Crooks Act
    Introduced· Government Operations and Politics· Aug 6, 2026
  4. S. 5294 Keeping China Off the Rails Act of 2026
    Introduced· Transportation and Public Works· Aug 6, 2026
  5. S. 4505 A bill to require the United States Postal Service to designate ZIP Codes for certain communities.
    Reported by committee· Government Operations and Politics· Aug 6, 2026
  6. S. 4952 Protecting American Taxpayers Act
    Introduced· Government Operations and Politics· Jul 14, 2026
  7. S. 4940 Specialized Infant Formula Protection Act
    Introduced· Agriculture and Food· Jun 24, 2026
  8. S. 4892 SMART Energy Efficiency Standards Act
    Introduced· Energy· Jun 24, 2026

Committees

Seats as published by the congress-legislators project. Past seats are those no longer listed since Analisa began recording them.

Campaign money

What the member's campaigns reported receiving, per FEC two-year cycle, and the federal contracts of the organizations that sponsor the giving PACs (each sponsor matched to a contract recipient by AI, with its probability). Comparisons of public records: neither explains the other.

2026 cycle

Raised
$2M
through Jun 30, 2026
Cash on hand
$1.9M
From committees
$342.4K
160 committees
From contractor PACs
$130.3K
49 PACs · 38% of committee money
IndividualsPACsPartySelf

Largest gifts from PACs of federal contractors, 2026

PAC sponsorGivenMatched contract recipientIts contracts, FY2026
national restaurant associationnational restaurant association pac (restaurant pac)$7,500NATIONAL RESTAURANT ASSOCIATION EDUCATIONAL FOUNDATIONAI match · 93% · of one corporate family$2M
mortgage bankers associationmortgage bankers association political action committee (morpac)$5,000MORTGAGE BANKERS ASSOCIATIONAI match · 100% · the same organization$125K
chevron corporationchevron employees political action committee - chevron corporation$5,000CHEVRON U.S.A. INCAI match · 100% · of one corporate family$713.4K
united parcel service, inc.united parcel service, inc. pac (upspac)$5,000UNITED PARCEL SERVICE INCAI match · 100% · of one corporate family$685.7K
nextera energy, incnextera energy, inc. political action committee$5,000NEXTERA ENERGY SERVICES MAINE, LLCAI match · 95% · of one corporate family$1.4M
american institute of certified public accountantsamerican institute of certified public accountants political action committee$5,000AMERICAN INSTITUTE OF CERTIFIED PUBLIC ACCOUNTANTSAI match · 100% · the same organization—
general dynamics corporationgeneral dynamics corporation political action committee (general dynamics employee pac)$5,000GENERAL DYNAMICS-OTS, INC.AI match · 100% · of one corporate family$29.3K
merck & co., inc.merck & co., inc., employees political action committee (merck pac)$5,000MERCK SHARP & DOHME LLCAI match · 100% · of one corporate family$445.3K
l3harris technologies, inc.l3harris technologies, inc. pac$5,000L3HARRIS TECHNOLOGIES, INC.AI match · 100% · the same organization$115.4M
jpmorgan chase & co.jpmorgan chase & co. federal political action committee$5,000JPMORGAN CHASE BANK, NATIONAL ASSOCIATIONAI match · 100% · of one corporate family$1.5M

By cycle

CycleRaised (FEC summary)From committeesFrom contractor PACs
2026$2M$342.4K$130.3K49 PACs · 38% of committee money
2024$2.9M$783.6K$137.3K50 PACs · 18% of committee money
2022$2M$272.2K$49K25 PACs · 18% of committee money

Raised is the FEC's cumulative summary of the candidacy; committee money counts each contribution reported, so the two cover slightly different dates.

Terms

Every term in the House or Senate, as published by the congress-legislators project.

  1. Senate · IowaJan 3, 2021 – Jan 3, 2027
  2. Senate · IowaJan 6, 2015 – Jan 3, 2021

Contact

Official channels, as published.

Office
260 Russell Senate Office Building
Contact form
Contact form

Identifiers

The same member in other public records.

Sources and method

Every figure on this page traces to these records.

  • Members of Congress, their terms, committees and identifiers (The @unitedstates project (from the Biographical Directory of the U.S. Congress, the House and the Senate))unitedstates/congress-legislators: legislators, committees and current committee membership · data current to Oct 3, 2026 · loaded Oct 3, 2026 · license: CC0 1.0 (public domain dedication)
  • House roll-call votes (Office of the Clerk, U.S. House of Representatives)Office of the Clerk, U.S. House of Representatives, roll-call vote records · data current to Oct 3, 2026 · loaded Oct 3, 2026 · license: Public domain (U.S. Government work, 17 U.S.C. § 105)
  • Senate roll-call votes and DW-NOMINATE scores (Voteview (UCLA Department of Political Science))Lewis, Jeffrey B., Keith Poole, Howard Rosenthal, Adam Boche, Aaron Rudkin, and Luke Sonnet (2026). Voteview: Congressional Roll-Call Votes Database. https://voteview.com/ · data current to Oct 3, 2026 · loaded Oct 3, 2026 · license: Free to use with the required citation
  • Bill status: bills and resolutions, sponsors, actions, subjects and CRS summaries (U.S. Government Publishing Office (GovInfo), from Congress.gov (Library of Congress))GovInfo Bill Status bulk data (Congress.gov; summaries by the Congressional Research Service) · data current to Oct 3, 2026 · loaded Oct 3, 2026 · license: Public domain (U.S. Government work, 17 U.S.C. § 105)
  • Congressional district boundaries and relationship files (U.S. Census Bureau)U.S. Census Bureau, Cartographic Boundary Files (congressional districts) and 2020 relationship files · release cd116+cd118+cd119 · loaded Oct 3, 2026 · license: Public domain (U.S. Government work, 17 U.S.C. § 105)
  • Committees, candidates and committee contributions to candidates (Federal Election Commission)FEC bulk data: committee master, candidate master (candidates' names, no addresses), linkages, PAC summaries, all-candidates summaries and contributions from committees (no individual contributors) · data current to Oct 5, 2026 · loaded Oct 5, 2026 · license: Public domain (U.S. Government work, 17 U.S.C. § 105)
  • Federal contract transactions (Federal Procurement Data System) (U.S. Department of the Treasury, USAspending.gov)USAspending.gov, prime award contract transactions (FPDS) · data current to Oct 3, 2026 · loaded Oct 3, 2026 · license: Public domain (U.S. Government work, 17 U.S.C. § 105)
  • Positions are shown only where a roll call recorded them; voice votes and unanimous consent record none.
  • Activity counts describe volume and attendance; they are not a measure of quality.
  • Money and votes are shown side by side; neither explains the other.