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Official portrait of Chuck Grassley

Chuck Grassley

U.S. Senator · Iowa

  • Republican
  • Since 1975
  • Tenure: 4+ terms

Refreshed 13 h ago

As of 2026-10-19 · Methodology 2026.10.1

Contact info

  • Capitol office

    135 Hart Senate Office Building Washington DC 20510

    202-224-3744

  • District offices

    Cedar Rapids · Council Bluffs · Davenport · Des Moines · Sioux City · Waterloo

View all contact info
  • Official website
  • Biographical Directory of Congress
  • GovTrack
  • Capitol office: 135 Hart Senate Office Building Washington DC 20510 · 202-224-3744
  • 111 7th Avenue SE, Box 13, Suite 6800, Cedar Rapids, IA, 52401 · 319-363-6832
  • 2146 27th Avenue, Suite 550, Council Bluffs, IA, 51501 · 712-322-7103
  • 201 W. 2nd St., Suite 720, Davenport, IA, 52801 · 563-322-4331
  • 210 Walnut St., 721, Federal Building, Des Moines, IA, 50309 · 515-288-1145
  • 320 6th St., 120, Federal Building, Sioux City, IA, 51101 · 712-233-1860
  • 531 Commercial St., 210, Waterloo Building, Waterloo, IA, 50701 · 319-232-6657

Evidence & sources

  • U.S. Senate roll-call votes

    Votes and participation (senate.gov)

  • Congress.gov bill records

    Sponsored and enacted bills

  • congress-legislators

    Terms, committees, offices

Stale, last successful update 2026-10-23

View all sources

Explore this record

Scorecard

Voting Record

71.2/ 100

Ranked 11 of 52 in the Senate majority

How this score is calculated:

  • Roll calls cast

    891 of 905 while seated (98.5%)

    51st percentile in cohort · 30 % weight

  • Substantive bills sponsored

    67 of 67 sponsored · 96.1 points

    80th percentile in cohort · 70 % weight

  • Bills enacted

    0 sponsored · 7 cosponsored

    8 passed a chamber · 3 reported · 56 introduced

Promise Adherence

0 of 5 promises scored

Collecting data - coming soon

How this score is calculated:

  • Reviewed promises

    0 scored of 5 needed

    0 promises from 0 sources this term

  • Days in office this term

    1,400 days (180 needed)

  • Promise capture coverage

    0 of 3 source kinds settled

Impact History (coming soon)

0 of 10 matched votes

Collecting data - coming soon

How this score is calculated:

  • Matched votes

    0 of 10 needed

  • District opinion cells

    0 snapshots frozen

    Needs ≥ 25 verified respondents and a lean ≥ 0.15

Approval Rating

0 of 1 public poll on record

Collecting data - coming soon

How this score is calculated:

  • Public polls averaged

    0 of 1 needed

  • Polls on file for this officeholder

    None recorded yet

  • Most recent fieldwork

    No poll on record

Filter

Recent activity

DateActionPolicyStatus
2025-12-09SponsoredS 3398 — Stop Sextortion ActProposed
2025-12-09SponsoredS 3394 — SAFE ActProposed
2025-12-09SponsoredS 3397 — ECCHO ActProposed
2025-12-08Voted yea on “On the Cloture Motion PN466-1”Cloture Motion Agreed toNo bill (motion or nomination)
2025-12-08SponsoredS 3384 — Fraud Risk Assessment of Obamacare Subsidies Accountability ActProposed
2025-12-04Voted yea on “On the Nomination PN520-4”Nomination ConfirmedNo bill (motion or nomination)
2025-12-04Voted yea on “On the Cloture Motion S.Res. 520”Cloture Motion RejectedSRES 520 — An executive resolution authorizing the en bloc consideration in Executive Session of certain nominations on the Executive Calendar.Proposed
2025-12-04Voted yea on “On the Joint Resolution H.J.Res. 131”Joint Resolution PassedHJRES 131 — Providing for congressional disapproval under chapter 8 of title 5, United States Code, of the rule submitted by the Bureau of Land Management relating to Coastal Plain Oil and Gas Leasing Program Record of Decision.Passed 2025-12-11
2025-12-04SponsoredS 3366 — Back the Blue Act of 2025Proposed
2025-12-04SponsoredS 3345 — PBM Price Transparency and Accountability ActProposed
2025-12-03Voted yea on “On the Cloture Motion PN520-4”Cloture Motion Agreed toNo bill (motion or nomination)
2025-12-03Voted yea on “On the Motion to Proceed S.J.Res. 91”Motion to Proceed Agreed toSJRES 91 — A joint resolution providing for congressional disapproval under chapter 8 of title 5, United States Code, of the rule submitted by the Bureau of Land Management relating to "Coastal Plain Oil and Gas Leasing Program Record of Decision".Active
2025-12-03Voted yea on “On the Nomination PN520-3”Nomination ConfirmedNo bill (motion or nomination)
2025-12-03Voted yea on “On the Cloture Motion PN520-3”Cloture Motion Agreed toNo bill (motion or nomination)
2025-12-02Voted yea on “On the Nomination PN520-2”Nomination ConfirmedNo bill (motion or nomination)
2025-12-02Voted yea on “On the Cloture Motion PN520-2”Cloture Motion Agreed toNo bill (motion or nomination)
2025-12-02Voted yea on “On the Nomination PN520-1”Nomination ConfirmedNo bill (motion or nomination)
2025-12-02SponsoredS 3307 — Inspector General Access Act of 2025Proposed
2025-12-02SponsoredSCONRES 24 — A concurrent resolution recognizing the 30th anniversary of the Dayton Peace Accords.Proposed
2025-12-02SponsoredS 3304 — Medical Foods and Formulas Access Act of 2025Proposed
2025-12-01Voted yea on “On the Cloture Motion PN520-1”Cloture Motion Agreed toNo bill (motion or nomination)
2025-11-20Voted yea on “On the Joint Resolution H.J.Res. 130”Joint Resolution PassedHJRES 130 — Providing for congressional disapproval under chapter 8 of title 5, United States Code, of the rule submitted by the Bureau of Land Management relating to Buffalo Field Office Record of Decision and Approved Resource Management Plan Amendment.Passed 2025-12-11
2025-11-20SponsoredSRES 513 — A resolution designating November 22, 2025, as National Adoption Day and November 2025 as National Adoption Month to promote national awareness of adoption and the children awaiting families, celebrating children and families involved in adoption, and encouraging the people of the United States to secure safety, permanency, and well-being for all children.Passed 2025-11-20
2025-11-20SponsoredS 3228 — SIMSA Act of 2025Proposed
2025-11-19Voted nay on “On the Motion to Proceed S.J.Res. 76”Motion to Proceed RejectedSJRES 76 — A joint resolution providing for congressional disapproval under chapter 8 of title 5, United States Code, of the rule submitted by the Environmental Protection Agency relating to "Extension of Deadlines in Standards of Performance for New, Reconstructed, and Modified Sources and Emissions Guidelines for Existing Sources: Oil and Natural Gas Sector Climate Review Final Rule".Active
This score is a guide, not a verdict.