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Portrait of Tom O’Halleran
Historical record / Representative

Tom O’Halleran

Arizona · District 1 · Democrat

Roster checked Sep 28, 2026Bioguide O000171

Public service, at a glance.

Tom O’Halleran served as a representative for Arizona in the House of Representatives. Tom's first recorded term in this role began on January 3, 2017. The last recorded term ended on January 3, 2023.

Chamber
U.S. House
State / territory
Arizona
Last recorded party
Democrat
District / role
District 1
Born
January 24, 1946
Last term ended
January 3, 2023

Service record

Recorded terms in the House for Arizona
FromToPartyRole
Jan 3, 2021Jan 3, 2023DemocratDistrict 1
Jan 3, 2019Jan 3, 2021DemocratDistrict 1
Jan 3, 2017Jan 3, 2019DemocratDistrict 1

Current Arizona House members

Continue exploring people serving Arizona today.

View the full Arizona House 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

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