
Senator Grassley's contribution profile relies more heavily on individual donors, who account for 71% of his $8.6 million in direct fundraising, with PACs and committees comprising the remaining 29%. Industry-tied contributions show notable overlap with his state economy, with agriculture representing 10% of industry money alongside significant support from health services (13%), lawyers and lobbyists (11%), real estate (8%), and securities and investment (8%), patterns reflected in his individual donor base which includes practitioners in law, investment, and farming. His voting record spans 117 recorded votes without corresponding stock trade disclosures on file.
FOLLOW THE MONEY
Left: who funds Grassley (ribbon width = dollars) · right: their votes on bills classified as favoring vs limiting those sectors
“Favors / limits” is an AI classification of each bill's likely effect on the sector — a factual reading of the bill, not a claim about motive. Correlation, not causation. The named bills are in DOES THE MONEY MATCH THE VOTES? below.
DOES THE MONEY MATCH THE VOTES?
How Grassley voted on bills touching their biggest donor sectors
Each dollar figure is Grassley's total from that donor sector — shown on each related vote, not a per-vote amount. Correlation between funding and votes, not causation; many factors shape any single vote.
TOP SOURCES
HAWKEYE FUND
PAC
CORNYN VICTORY COMMITTEE, JOHN
PAC
S.A.M. MARKETING SERVICES
corporation
HONORING AMERICAN LAW ENFORCEMENT PAC
PAC
CORNYN VICTORY COMMITTEE
corporation
ALIGNMENT SIGNALS
Chuck Grassley (R) sponsored s4460-119; Health Services is their largest tracked donor sector (8%) with 19813 active lobbying filings
Senator Chuck Grassley's bill s4460-119 would extend a Medicare reimbursement demonstration program for small rural hospitals in the Health Services industry for five additional years. Grassley is the primary sponsor of this legislation. Health Services ranks among Grassley's top donor industries at 8.1% of identifiable contributions ($0.95M), and Health Services companies filed 19,813 lobbying reports since 2022 related to issues addressed in this bill.
Chuck Grassley (R) is primary sponsor of Health Services bill s4460-119; Health Services is a top donor industry (9%)
Bill s4460-119 would extend a Medicare cost-reimbursement demonstration program for small rural Health Services providers for five additional years. Senator Chuck Grassley (R-IA) introduced this bill. Health Services represents 9.0% of Grassley's identifiable donor base ($0.77M), ranking 70th among donor industries within their party.
LEGISLATION
7 sponsored
A bill to provide for the availability of amounts for customer education initiatives and non-awards
S409-117 · Signed
Trafficking Victims Prevention and Protection Reauthorization Act of 2022
S3949-117 · Signed
Justice for Victims of War Crimes Act
S4240-117 · Signed
Bankruptcy Threshold Adjustment and Technical Corrections Act
S3823-117 · Signed
COMMITTEES
SIMILAR DONOR NETWORKS
Members funded by the same industries — overlapping donor networks may reflect shared policy interests.

John Boozman
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Dusty Johnson
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Jason Smith
R-MO · House