Chuck Grassley

U.S. Senator · Iowa · Republican · Chair, Judiciary

From public records: votes from Voteview, bills from congress.gov, money from FEC filings · votes updated Nov 2, 2026 · How we measure

Effectiveness, 119th Congress so far

How it’s measured

1.45· expected 1.48

Meets expectations

Rank 19 of 100 in the Senate · expected = average of 21 majority-party committee chairs

How far Grassley’s own bills got, weighted by substance. The average member scores 1.00.

67 bills and joint resolutions sponsored: 0 significant (got a roll call vote), 67 substantive, 0 commemorative. Compare the Senate

Became law inside another bill (1)

S. 1666 Improving Social Security’s Service to Victims of Identity Theft ActIdentical bill became law as H.R. 5345 · Oct 7, 2026Via H.R. 5345

Grassley’s own bill stalled, but the Congressional Research Service lists an identical bill, or one with similar text, that became law. Shown for context; not counted in the score, which follows the Center for Effective Lawmaking. How this works

How Grassley’s ratings compare with every senator

Ratings, 119th Congress

Scores run 0–100 and always sit next to a median. Each tick is one senator; the ringed marker is Grassley.

Grassley in plain answers: party votes, bipartisanship, who votes alike

Attendance

How it’s measured

97/ 100

Chamber median 98 · 24 missed of 915

Voted on 891 of 915 roll calls; missed 24. Lower than 55% of senators.

85%100%

Party loyalty

How it’s measured

99/ 100

Senate R median 100 · Rank 35 of 53

Sided with the Republican majority on 819 votes that split the parties. Higher than 56% of senators.

75%100%

Bipartisan

How it’s measured

9/ 100

Chamber median 9 · +0

Average agreement with members of the other party on contested votes. Higher than 59% of senators.

0%30%

Position

How it’s measured

+0.36

Republican middle 80%: 0.38 to 0.78

Left–right position from roll-call similarity (DW-NOMINATE, Voteview), from −1 to +1. Members who vote alike sit near each other.

LiberalConservative

Grassley’s bills that got action in committee or further

All bills

12 bills and joint resolutions sponsored in the 119th Congress, furthest along first. These are the bills counted in Grassley’s effectiveness score.

S. 3977 Bankruptcy Threshold Adjustment Act of 2026Increases debt limits for small business and wage earner bankruptcies and adjusts Chapter 13 debt calculation. AI-readFinance and Financial Sector · Introduced Aug 10, 2026Substantive369 words Introduced
S. 2677 A bill to expand the sharing of information with respect to suspected violations of intellectual property rights in trade.Expands U.S. Customs and Border Protection authority to share information about suspected intellectual property violations with interested parties. AI-readForeign Trade and International Finance · Introduced Aug 10, 2026SubstantiveText pending Introduced
S. 736 Lieutenant Osvaldo Albarati Stopping Prison Contraband ActIncreases federal criminal penalties for providing cell phones to incarcerated individuals. AI-readCrime and Law Enforcement · Introduced Jun 15, 2026Substantive184 words Introduced
S. 825 Fighting Post-Traumatic Stress Disorder Act of 2025Requires DOJ to report on proposed mental health programs for public safety officers with job-related stress disorders. AI-readCrime and Law Enforcement · Introduced Jun 15, 2026Substantive777 words Introduced
S. 162 Recruiting Families Using Data Act of 2025Requires state child welfare plans to include family partnership programs improving foster care placement stability and kinship placements. AI-readFamilies · Introduced Jun 15, 2026SubstantiveText pending Introduced
S. 4460 Rural Community Hospital Demonstration Program ReauthorizationExtends Rural Community Hospital Demonstration Program for five additional years. AI-readHealth · Introduced May 21, 2026Substantive323 words Introduced
S. 856 Disclosing Foreign Influence in Lobbying ActRequires registered lobbyists to disclose foreign countries or political parties directing their activities. AI-readGovernment Operations and Politics · Introduced Dec 17, 2025Substantive122 words Introduced
S. 960 Justice for Murder Victims ActRemoves statute of limitations for federal homicide prosecutions. AI-readCrime and Law Enforcement · Introduced Mar 14, 2025Substantive335 words Introduced
S. 1133 Sunshine in the Courtroom Act of 2025Unable to determine bill content; no summary available. AI-readLaw · Out of committee Jun 23, 2026Substantive1k words Out of committee
S. 180 Protecting First Responders from Secondary Exposure Act of 2025Unknown; bill summary not yet available. AI-readCrime and Law Enforcement · Out of committee May 20, 2025Substantive102 words Out of committee
S. 527 Prescription Pricing for the People Act of 2025Requires the FTC to report on anticompetitive practices in pharmaceutical supply chains and pharmacy benefit manager conduct. AI-readCommerce · Out of committee Apr 10, 2025Substantive610 words Out of committee
S. 2289 Healthy Moms and Babies ActEstablishes Medicaid and CHIP programs for maternal health services, telehealth, and workforce support. AI-readHealth · In committee Mar 19, 2026Substantive12k words In committee

Stage comes from each bill’s latest action on congress.gov; the full history is on each bill page.