Chuck Grassley — Congress activity and voting record

Explore Chuck Grassley's recorded votes, lawmaking and work across Congress. IA. Compare individual measures and read official evidence.

Senior United States Senator for Iowa · Republican

2023-01-03–2029-01-03

Published snapshot: 2026-09-13. Individual measures cover different periods; follow each measure for its dates and source details.

Published activity figures
Measure	Figure
Roll-call participation	97.3%
Votes differing from the member’s party majority	0.8%
Bills and joint resolutions sponsored	64
Sponsored measures with recorded advancement	34
Sponsored bills passed by their chamber	8
Sponsored measures with cross-party cosponsors	78
Measures cosponsored	240
Other-party measures cosponsored	87
Other-party cosponsors attracted	384
Amendments sponsored	49

Each comparison has its own period and eligibility rules. Open a measure for the full comparison group, rank and explanation.

Sources and comparison rules

Each figure describes a specific published record. Roles, opportunities and work outside Parliament or Congress also matter.