Senator · Iowa

Chuck Grassley

Chuck Grassley is a Republican senator from Iowa, in Congress since 1975. In the 119th Congress, 915 roll calls were held while they served; they missed 24, and cast 815 of 820 party-unity votes with the majority of their caucus.

Party
Republican
Chamber
Senate
Current
In Congress since
Jan 14, 1975
Term ends
Jan 3, 2029
Open in the Congress explorerOfficial recordAlert me
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 CongressSenate9152.6%24 of 915 · rank 46 of 10199%815 of 820 · rank 45 of 101970 became law36%90 of 248
118th CongressSenate6910.7%5 of 691 · rank 86 of 10187%465 of 537 · rank 90 of 101771 became law42%136 of 323
117th CongressSenate9490.0%0 of 949 · rank 99 of 10079%603 of 768 · rank 90 of 100915 became law47%172 of 368

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+0.36+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. H.R. 7148: Consolidated Appropriations Act, 2026Nay
    Jan 30, 2026· Senate· Amendments· On the Amendment· Amendment Rejected 32–67· Against party
  2. S. 2296: National Defense Authorization Act for Fiscal Year 2026Nay
    Oct 9, 2025· Senate· Amendments· On the Amendment· Amendment Rejected 51–46· Against party
  3. S. 2296: National Defense Authorization Act for Fiscal Year 2026Nay
    Oct 9, 2025· Senate· Amendments· On the Amendment· Amendment Rejected 53–43· Against party
  4. H.R. 1968: Full-Year Continuing Appropriations and Extensions Act, 2025Nay
    Mar 14, 2025· Senate· Amendments· On the Amendment· Amendment Rejected 27–73· Against party
  5. H.R. 815: Making emergency supplemental appropriations for the fiscal year ending September 30, 2024, and for other purposes.Yea
    Feb 13, 2024· Senate· Passage· On Passage of the Bill· Bill Passed 70–29· Against party
  6. H.R. 815: Making emergency supplemental appropriations for the fiscal year ending September 30, 2024, and for other purposes.Yea
    Feb 12, 2024· Senate· Amendments· On the Amendment· Amendment Agreed to 66–33· Against party
  7. H.R. 662: Block Grant Assistance Act of 2023Nay
    Nov 1, 2023· Senate· Passage· On Passage of the Bill· Bill Defeated 43–53· Against party
  8. H.R. 3746: Fiscal Responsibility Act of 2023Yea
    Jun 1, 2023· Senate· Passage· On Passage of the Bill· Bill Passed 63–36· Against party

Recent votes

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

  1. S. 4668: Protect College Sports Act of 2026Yea
    Sep 28, 2026· Senate· Passage· On Passage of the Bill· Bill Passed 77–22
  2. S. 4668: Protect College Sports Act of 2026Nay
    Sep 28, 2026· Senate· Amendments· On the Amendment· Amendment Rejected 47–52
  3. S. 4668: Protect College Sports Act of 2026Nay
    Sep 28, 2026· Senate· Amendments· On the Amendment· Amendment Rejected 49–50
  4. S. 4668: Protect College Sports Act of 2026Nay
    Sep 28, 2026· Senate· Amendments· On the Amendment· Amendment Rejected 42–54
  5. S. 4668: Protect College Sports Act of 2026Nay
    Sep 28, 2026· Senate· Amendments· On the Amendment· Amendment Rejected 1–94
  6. S. 4668: Protect College Sports Act of 2026Yea
    Sep 28, 2026· Senate· Amendments· On the Amendment· Amendment Agreed to 96–1
  7. H.Con.Res. 89: Directing the President, pursuant to section 5(c) of the War Powers Resolution, to remove United States Armed Forces from hostilities with Iran.Nay
    Sep 24, 2026· Senate· Passage· On the Concurrent Resolution· Concurrent Resolution Rejected 49–50
  8. S. 4668: Protect College Sports Act of 2026Yea
    Sep 24, 2026· Senate· Amendments· On the Amendment· Amendment Agreed to 77–23
  9. H.R. 6500: Continuing Appropriations and Extensions Act, 2027Yea
    Aug 8, 2026· Senate· Passage· On Passage of the Bill· Bill Passed 90–6
  10. H.R. 5334: Lindsey O. Graham Sanctioning Russia and Iran Act of 2026Yea
    Aug 7, 2026· Senate· Passage· On Passage of the Bill· Bill Passed 86–11
  11. H.R. 5334: Lindsey O. Graham Sanctioning Russia and Iran Act of 2026Nay
    Aug 7, 2026· Senate· Amendments· On the Amendment· Amendment Rejected 32–64
  12. S.Res. 817: An executive resolution authorizing the en bloc consideration in Executive Session of certain nominations on the Executive Calendar.Yea
    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.

265 sponsored · 6 became law

How far they got

  1. Introduced16763%
  2. Reported by committee103.8%
  3. Passed one chamber8231%
  4. Became law62.3%

Policy areas

  1. Crime and Law Enforcement78
  2. Health31
  3. Government Operations and Politics24
  4. Education22
  5. Immigration13
  6. Families12
  7. Agriculture and Food11
  8. International Affairs11

Latest activity

  1. S.Res. 939 A resolution expressing the sense of the Senate that it values the active participation of the Republic of Kosovo as the state partner of the Iowa National Guard over the past 15 years.
    Passed one chamber· Sep 30, 2026
  2. S. 5611 SRBIJA Act
    Introduced· Sep 30, 2026
  3. S.Res. 927 A resolution designating the week beginning October 18, 2026, as "National Character Counts Week".
    Passed one chamber· Education· Sep 29, 2026
  4. S. 5583 Small Agri-Biodiesel Producer Credit Extension Act
    Introduced· Sep 29, 2026
  5. S. 5520 SCREENS Act
    Introduced· Sep 24, 2026
  6. S. 3977 Bankruptcy Threshold Adjustment Act of 2026
    Passed one chamber· Finance and Financial Sector· Aug 10, 2026
  7. S. 2677 A bill to expand the sharing of information with respect to suspected violations of intellectual property rights in trade.
    Passed one chamber· Foreign Trade and International Finance· Aug 10, 2026
  8. S.Res. 846 A resolution designating August 21, 2026, as "Fentanyl Prevention and Awareness Day".
    Passed one chamber· Health· Aug 7, 2026

Committees

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

Current seats

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
$328.1K
through Jun 30, 2026
Cash on hand
$360.2K
From committees
$49.2K
22 committees
From contractor PACs
$9,500
4 PACs · 19% of committee money
IndividualsPACsPartySelf

Largest gifts from PACs of federal contractors, 2026

PAC sponsorGivenMatched contract recipientIts contracts, FY2026
axon enterprise incaxon enterprise inc political action committee$5,000AXON ENTERPRISE, INC.AI match · 100% · the same organization$127M
deere & companydeere & company pac (aka john deere pac)$2,500DEERE & COMPANYAI match · 99% · the same organization$10.2M
chs inc.chs inc. political action committee$1,000CHS INC.AI match · 100% · the same organization$76.7M
the aes corporationaes corporation political action committee; the$1,000THE AES CORPORATIONAI match · 100% · the same organization$551.7K

By cycle

CycleRaised (FEC summary)From committeesFrom contractor PACs
2026$328.1K$49.2K$9,5004 PACs · 19% of committee money
2024$770.1K$93.1K$13K10 PACs · 14% of committee money
2022$9.5M$2.3M$449.4K95 PACs · 19% 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, 2023 – Jan 3, 2029
  2. Senate · IowaJan 3, 2017 – Jan 3, 2023
  3. Senate · IowaJan 5, 2011 – Jan 3, 2017
  4. Senate · IowaJan 4, 2005 – Jan 3, 2011
  5. Senate · IowaJan 6, 1999 – Jan 3, 2005
  6. Senate · IowaJan 5, 1993 – Jan 3, 1999
  7. Senate · IowaJan 6, 1987 – Jan 3, 1993
  8. Senate · IowaJan 5, 1981 – Jan 3, 1987
  9. House · Iowa's 3rd districtJan 15, 1979 – Jan 3, 1981
  10. House · Iowa's 3rd districtJan 4, 1977 – Jan 3, 1979
  11. House · Iowa's 3rd districtJan 14, 1975 – Jan 3, 1977

Contact

Official channels, as published.

Website
www.grassley.senate.gov
Phone
202-224-3744
Office
135 Hart 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 9, 2026 · loaded Oct 9, 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 9, 2026 · loaded Oct 9, 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 9, 2026 · loaded Oct 9, 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.