Composite score - coming soon
Chuck Grassley
U.S. Senator · Iowa
- Republican
- Since 1975
- Tenure: 4+ terms
Refreshed 6 h ago
As of 2026-10-19 · Methodology 2026.10.1Contact 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 sourcesExplore this record
Scorecard
Voting Record
71.2/ 100
Ranked 11 of 52 in the Senate majority
Voting Record
71.2/ 100
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
Promise Adherence
0 of 5 promises scored
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
Recent activity
| Date | Action | Policy | Status |
|---|---|---|---|
| 2025-03-26 | Voted yea on “On the Cloture Motion PN12-15”Cloture Motion Agreed to | No bill (motion or nomination) | |
| 2025-03-26 | Voted yea on “On the Nomination PN12-37”Nomination Confirmed | No bill (motion or nomination) | |
| 2025-03-26 | Voted yea on “On the Cloture Motion PN12-37”Cloture Motion Agreed to | No bill (motion or nomination) | |
| 2025-03-26 | Voted yea on “On the Nomination PN12-3”Nomination Confirmed | No bill (motion or nomination) | |
| 2025-03-26 | Sponsored | S 1153 — No Dollars for Dictators Act of 2025 | Proposed |
| 2025-03-26 | Sponsored | S 1133 — Sunshine in the Courtroom Act of 2025 | Active |
| 2025-03-26 | Sponsored | S 1151 — Accountability Through Electronic Verification Act | Proposed |
| 2025-03-26 | Sponsored | S 1149 — SEC Whistleblower Reform Act of 2025 | Proposed |
| 2025-03-26 | Sponsored | S 1146 — Cameras in the Courtroom Act | Active |
| 2025-03-25 | Voted yea on “On the Cloture Motion PN12-3”Cloture Motion Agreed to | No bill (motion or nomination) | |
| 2025-03-25 | Voted yea on “On the Nomination PN12-28”Nomination Confirmed | No bill (motion or nomination) | |
| 2025-03-25 | Voted yea on “On the Cloture Motion PN12-28”Cloture Motion Agreed to | No bill (motion or nomination) | |
| 2025-03-25 | Voted yea on “On the Nomination PN12-2”Nomination Confirmed | No bill (motion or nomination) | |
| 2025-03-25 | Voted yea on “On the Cloture Motion PN12-2”Cloture Motion Agreed to | No bill (motion or nomination) | |
| 2025-03-25 | Voted yea on “On the Nomination PN13-8”Nomination Confirmed | No bill (motion or nomination) | |
| 2025-03-25 | Voted yea on “On the Cloture Motion PN13-8”Cloture Motion Agreed to | No bill (motion or nomination) | |
| 2025-03-25 | Sponsored | SRES 138 — A resolution supporting the goals and ideals of "Deep Vein Thrombosis and Pulmonary Embolism Awareness Month". | Passed 2025-03-25 |
| 2025-03-24 | Voted yea on “On the Nomination PN12-25”Nomination Confirmed | No bill (motion or nomination) | |
| 2025-03-24 | Voted yea on “On the Nomination PN12-36”Nomination Confirmed | No bill (motion or nomination) | |
| 2025-03-24 | Sponsored | S 1098 — Opioid Overdose Data Collection Enhancement Act | Active |
| 2025-03-24 | Sponsored | S 1097 — Interagency Patent Coordination and Improvement Act of 2025 | Active |
| 2025-03-24 | Sponsored | S 1091 — Rural Housing Accessibility Act | Proposed |
| 2025-03-24 | Sponsored | S 1095 — Stop STALLING Act | Active |
| 2025-03-24 | Sponsored | S 1096 — Preserve Access to Affordable Generics and Biosimilars Act | Active |
| 2025-03-14 | Voted yea on “On the Cloture Motion PN12-25”Cloture Motion Agreed to | No bill (motion or nomination) |