Chuck Grassley

52 years in the U.S. Congress · since 1975

• Senator IA 1981–present
• Representative IA-3 1975–1981

• role Senior United States senator from Iowa since 1981
• role President pro tempore of the United States Senate since 2025, a role he also held from 2019 to 2021
• role Served in the Iowa House of Representatives from 1959 to 1975 and the U.S. House from 1975 to 1981
• role Has chaired the Senate Finance, Judiciary, and Aging Committees and the Narcotics Control Caucus
• achievement Longest-serving Republican in congressional history and the oldest sitting U.S. senator
• background First elected to public office in 1958, holding elected office continuously since 1959

Assembled from Congress.gov · FEC · official disclosures — each fact links its own source

These are verifiable facts from the public record, assembled in one place and presented without judgment. They are not a score, a grade, or a ranking. Context matters: a missed vote may be excused, on leadership or committee duty, or paired; a party-unity rate reflects agenda alignment, not virtue or independence; a disclosed trade or a documented relationship is a required public filing, not evidence of wrongdoing. Each fact links to its full source below.

• 100.0%
  Roll-call participation →

  voted in 30 recorded roll calls · chamber median 100.0%

  Missing a vote is not inherently negative — an absence can be excused, reflect leadership or committee duty, or a recorded pairing.

• 98
  Bills sponsored →

  plus 305 cosponsored

  A count of bills introduced as the primary sponsor; most legislation never advances, regardless of who sponsors it.

• 0
  Sponsored bills enacted →

  of 98 bills sponsored

  Whether a bill becomes law depends on the whole Congress, not the sponsor alone; substantive provisions often pass folded into other vehicles.

• 100%
  Party-unity voting →

  votes with the party majority · median 100% · on 11 party-line votes

  Party-unity is how often a member votes with their own party's majority on party-line votes — it reflects agenda alignment, not loyalty, independence, or virtue.

• 0%
  Cross-party voting →

  votes with the other party's majority on those same votes

  The share of the same party-line votes cast with the OTHER party's majority — a descriptive rate, not a measure of principle.

• 0
  Documented positions →

  no positions documented yet

  Documented, sourced positions we have on record — the absence of a documented position is not the absence of a view.

• 12
  Committee assignments →

  committees and subcommittees

  Committee seats are assignments made by party leadership — a measure of role and jurisdiction, not an achievement or a conflict in itself.

Assembled from CivicGate's ingested public records for Chuck Grassley. A fact shown as “—” means we don't yet hold that data — not that the value is zero.

Data from senate.gov roll-call records

Data from Congress.gov committee memberships

• Judiciary Committee Chairman · oversees Technology
• Social Security, Pensions, and Family Policy Subcommittee Chairman
• Agriculture, Nutrition, and Forestry Committee
• Budget Committee
• Finance Committee
• International Trade, Customs, and Global Competitiveness Subcommittee
• Joint Committee on Taxation
• Rural Development, Energy, and Credit Subcommittee · oversees Energy
• Taxation and IRS Oversight Subcommittee
• United States Senate Caucus on International Narcotics Control
• Commodities, Derivatives, Risk Management, and Trade Subcommittee
• Food and Nutrition, Specialty Crops, Organics, and Research Subcommittee

Documented + CivicGate vote-derived — stated positions link their source; derived positions come from votes on direction-tagged bills

• DefenseFull support from votes
• Economy & TaxesFull support from votes
• Foreign PolicyFull support from votes

Data from Stock Watcher / official disclosures

Data from Congress.gov

The members Grassley most often co-sponsors bills with — their legislative coalition.

Data from Congress.gov · FEC

How Grassley connects to other members, committees, and PACs — drawn only from ingested records.

Data from Congress.gov