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Portrait of Chuck Grassley
Currently serving / Senator

Chuck Grassley

Iowa · U.S. Senate · Republican

Roster checked Sep 28, 2026Bioguide G000386

Public service, at a glance.

Chuck Grassley serves as a senator for Iowa in the United States Senate. Chuck's first recorded term in this role began on January 5, 1981.

Chamber
U.S. Senate
State / territory
Iowa
Current party
Republican
Senate class
3
Born
September 17, 1933
Scheduled term end
January 3, 2029

Committee assignments

Service record

Recorded terms in the Senate for Iowa
FromToPartyRole
Jan 3, 2023Jan 3, 2029 (scheduled)RepublicanU.S. Senate
Jan 3, 2017Jan 3, 2023RepublicanU.S. Senate
Jan 5, 2011Jan 3, 2017RepublicanU.S. Senate
Jan 4, 2005Jan 3, 2011RepublicanU.S. Senate
Jan 6, 1999Jan 3, 2005RepublicanU.S. Senate
Jan 5, 1993Jan 3, 1999RepublicanU.S. Senate
Jan 6, 1987Jan 3, 1993RepublicanU.S. Senate
Jan 5, 1981Jan 3, 1987RepublicanU.S. Senate

Other congressional service

Published biographical research

These are dated observations from named sources. They are not new surveys of the member’s identity or beliefs.

FieldReported valueSource and coverageEvidence date
Religious affiliationBaptistReligious affiliation of members of the 119th Congress

Named members of the incoming 119th Congress; historical observation, not a live survey

Published Jan 2, 2025

Related congressional collections

Explore the source-defined collections that include Chuck Grassley. Each collection explains its dates and coverage.

Current Iowa senators

Continue exploring people serving Iowa today.

View the full Iowa Senate delegation

Sources & methodology

  1. United States Congress legislators dataset ↗
    unitedstates / GovTrack contributors — Biographical details, terms, official contact details and committees
  2. Congressional portraits ↗
    unitedstates/images — Official congressional photographs; image provenance maintained by the source
  3. Religious affiliation of members of the 119th Congress ↗
    Pew Research Center, based on CQ Roll Call · 2025-01-02 — Named members of the incoming 119th Congress; historical observation, not a live survey

Dates and coverage differ by source. How we use this data · Suggest a correction