Chuck Grassley
Republican · IA · U.S. Senate
Bio
Charles Ernest Grassley is an American politician serving as the senior U.S. senator from Iowa, a seat he has held since 1981. Since 2025, he has been the president pro tempore of the United States Senate, a position he also held from 2019 to 2021. He is a member of the Republican Party.
Full bio on Wikipedia →Record of service
- In office
- 51.6 years
- Chambers
- House 5.9y, Senate 45.7y
- First took office
- 1975 (11 terms)
- Seniority
- 1 of 100 by time served
- Age
- 93
- Senate class
- 3 · senior senator
- President Pro Tempore of the Senate · 2019–2021
- President Pro Tempore of the Senate · 2025–present
- Davenport, IA · 563-322-4331
- Des Moines, IA · 515-288-1145
- Sioux City, IA · 712-233-1860
- Waterloo, IA · 319-232-6657
- Council Bluffs, IA · 712-322-7103
- Cedar Rapids, IA · 319-363-6832
Service history, offices and identifiers from unitedstates/congress-legislators (public domain). Years served sum each term rather than subtracting the first start date, so a break in service is not counted as time in office.
Reported net worth
- Assets
- $4.0M – $9.1M
- Liabilities
- $0 – $0
- Net worth
- $4.0M – $9.1M
- Since 2018
- +$2.8M
From annual financial disclosures, which report every asset and debt as a bracket — so these are ranges, and the figure shown is their midpoint. A primary residence is not a reportable asset while its mortgage is a reportable debt, which pushes some members negative. How this is calculated →
Overall lean (DW-NOMINATE)
Issue profile
Each issue runs left ↔ right, scored from how the member voted on bills tagged to that issue (−1…+1). Issues with too few votes are blank. Overall lean uses DW-NOMINATE.
How they score against the parties
Chuck Grassley's voting record compared with each party's national platform, issue by issue — the same similarity score used across the site.
On the political map
Chuck Grassley (the large ringed dot) among every current member of Congress and the party platforms.
Each small dot is a current member (Dem · Rep); the larger dots are party platforms — click one for its closest members. Economic axis: taxes, healthcare, labor, energy. Social axis: abortion, guns, immigration, civil rights, crime.
Do you vote like Grassley?
Answer a few questions on the issues and see which members of Congress — and which party — actually line up with you.
Caucuses & committees
Where Grassleysits in Congress's own organization — each group's lean is computed from its members' voting records. Explore them all on the caucuses and committees pages.
Committees
- Joint Committee on Taxationcenter · 10 members
- United States Senate Caucus on International Narcotics Controlcenter · 7 members
- Senate Committee on Agriculture, Nutrition, and Forestrycenter · 23 members
- Senate Committee on the Budgetcenter · 20 members
- Senate Committee on Financecenter · 27 members
Most and least aligned members
Treating Grassley's 14 issue scores as a vector, cosine similarity measures whether two voting records point the same way (+100%) or in opposite directions (−100%) — the colleagues whose records align most and least with theirs.
Recent notable votes
Latest news
Democrats are about to see the Jack Smith texts that blew up in a GOP senator’s faceWASHINGTON — The top Democrat on the Senate Judiciary Committee is demanding his colleagues across the aisle apologize to former special counsel Jack Smith after Missouri Republican Sen. Eric Schmitt launched false accusations at a recent hearing and called t…
Raw Story · Yesterday
Chuck Grassley Files For Reelection; Would Be 101 If He Finished Entire TermRepublican Iowa Sen. Chuck Grassley filed for reelection Sunday, meaning he would be 101 years old at the end of his next potential term.
The Daily Caller · Yesterday- Sen. Chuck Grassley Files for 2028 Senate Reelection Bid
Republican Senator Chuck Grassley, who serves as the Senate Pro Tempore, has filed for reelection at the age of 93. Should he win reelection in 2028, Grassley would be 101 by the end of his next term.
Freerepublic.com · October 11, 2026 
Chuck Grassley fires back at Democrats over Jack Smith – but leaves out one glaring detailSenate Judiciary Chair Chuck Grassley (R-IA) is hitting back at Democrats who criticized Republicans’ treatment of former special counsel Jack Smith – but he glossed over the embarrassing goof that set off the dispute.In a letter to top committee Democrat Dic…
Raw Story · October 9, 2026
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