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
- 51.5 years
- Chambers
- House 5.9y, Senate 45.6y
- First took office
- 1975 (11 terms)
- Seniority
- 1 of 100 by time served
- Age
- 92
- 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 · 21 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
Trump admin 'power struggle' prompts bitter attacks from fuming GOP lawmakersHouse Republicans have reached their limit with President Donald Trump overriding their funding decisions and now they are openly challenging the administration.According to Politico, there is a "power struggle" underway between Republican House and Senate Ap…
Raw Story · August 21, 2026
Chuck Grassley Roasted After Blaming 'Socialist Policies' For Skyrocketing DebtSen. Chuck Grassley (R-IA) drew ridicule Wednesday after blaming "socialist policies" for the national debt reaching $40 trillion, a milestone critics said he helped create. The Iowa Republican posted on X Thursday morning, calling the debt a "wake-up call" a…
Crooksandliars.com · August 21, 2026
Why the GOP’s Pushing a “Satanic Wedding” Story in This RaceYou’re reading The TNR Blue Book. Get daily scoops, strategy, and developments inside the liberal ideas factory delivered right to your inbox. Sign up for free.Inside WashingtonThis could be Dems’ best chance to flip a House seat in IowaSarah Trone Garriott m…
The New Republic · August 20, 2026
Chuck Grassley torched for 'astonishing' self-ignorance over sudden $40T debt concernSen. Chuck Grassley (R-IA) drew ridicule Wednesday after blaming "socialist policies" for the national debt reaching $40 trillion, a milestone critics said he helped create.The Iowa Republican posted on X Thursday morning, calling the debt a "wake-up call" an…
Raw Story · August 20, 2026
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