Former member of Congress · last served 117th Congress

Tom O'Halleran

DEMOCRAT U.S. Representative · ArizonaHouse 2017–2023 (AZ-1)

Tom O'Halleran was a Democratic U.S. representative from Arizona, first elected to Congress in 2017, who sponsored 4 bills that became law (115th–117th Congress).

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116Bills & resolutions sponsored115th–117th Congress (excludes amendments)

9Passed a chamberof 107 substantive bills (excludes resolutions and ceremonial bills)

4Became law4 substantive + 0 ceremonial · 115th–117th Congress

—Broke with partyNo roll calls in PORKER’s records (they start in 2011)

—Missed votesNo roll calls in PORKER’s records (they start in 2011)

—Pork: own shareFY2024 earmarks: not in office

How we count: “Broke with party” is a yes/no roll call where the member voted against most of their own party on that vote (party as recorded; even splits not counted). “Pork: own share” splits each earmark shared by several members evenly among them.

Recent votes

No recorded roll-call votes in PORKER’s records. Roll-call records start in 2011.

5 most recent bills

H.R. 478 Blackwater Trading Post Land Transfer Act
Dec 27, 2022 · Became Public Law No: 117-267.
H.R. 9633 Arizona Tribes Water Marketing Act of 2022
Dec 20, 2022 · Referred to the House Committee on Natural Resources.
H.R. 9480 San Juan Southern Paiute Tribal Homelands Act of 2022
Dec 8, 2022 · Referred to the House Committee on Natural Resources.
H.R. 7135 NOPE Act
Nov 1, 2022 · Referred to the Subcommittee on the Constitution, Civil Rights, and Civil Liberties.
H.R. 7133 CLEAR Doors Act
Nov 1, 2022 · Referred to the Subcommittee on the Constitution, Civil Rights, and Civil Liberties.

Top bills sponsored

Laws first, then bills that passed a chamber, were reported from committee, or drew the most cosponsors.

Elections Rep. O’Halleran has won

Rep. O’Halleran has won 3 U.S. House elections (2016–2020). Of the contested races, margins ran from 3.2 to 7.7 points.

Democratic winRepublican winseat changed partyunopposed

Elections won3 in the data (1976–2024); losses are not listed

Closest win: 3.2 points2020, AZ-1

Won an open seat or took one from the other party1 of 3 elections (open seat or changed party)

Seat history, Arizona’s 1st districtWinners, most recent three: Ann Kirkpatrick (D) 2012–2014 → Tom O’Halleran (D) 2016–2020 → David Schweikert (R) 2022–2024. Elections shown, not terms; special elections not included.

Full election history for this seat →

Source: MIT Election Data and Science Lab, U.S. House V15 / U.S. Senate V8 (CC0), retrieved 2026-10-18; winners matched to member records by seat and term. Results run through the 2024 elections; nothing from 2026 is shown until it is certified. A margin is a fact about one election, never a score of how well a member represents anyone, and PORKER does not rank members by it.

How has Arizona’s 1st district done while Rep. O'Halleran served?

2017 to 2021 in AZ-1: typical household income was up 11% after inflation, the share of people below the poverty line was down 2.7 points, and the share of workers looking for a job was about the same.

Typical household income · after inflation

AZ-1: $64.6K in 2017 → $71.5K in 2021

AZ-1 up 11%Arizona up 10%U.S. up 4%

Share of people below the poverty line

AZ-1: 19.2% in 2017 → 16.5% in 2021

AZ-1 down 2.7 pointsArizona down 2.1 pointsU.S. down 0.6 points

Share of workers looking for a job

AZ-1: 8.0% in 2017 → 7.1% in 2021

AZ-1 about the sameArizona about the sameU.S. up 1.0 points

Each mini chart has its own scale, fitted to its lines (it does not start at zero), so compare the numbers, not the heights. Teal = district, oxblood = state, grey = U.S.

While they served, not because of them. This shows what happened in Arizona’s 1st district during O'Halleran’s time representing it (2017 to 2023). It does not say what the member did or caused. It is not a score, and PORKER never ranks members on it.

Only one set of district lines is shown. AZ-1 was redrawn in 2012 and again in 2022, and a redrawn district is a different place. So this card shows only the longest stretch on the same lines during the term, 2017 to 2021 (no 2020 yearly estimate), not the full 2017 to 2023.

See the full 20-year record →Source: U.S. Census Bureau, American Community Survey 1-year estimates (tables B19013, B17001, B23001) and BLS CPI-U-RS for inflation, retrieved October 18, 2026. “About the same” means the change is inside the 90% margins of error. Who held the seat: Congress.gov member service records, year level.

Official records on bills this member sponsored

117th Congress. What Congress.gov lists for the 55 bills sponsored.

Record	Bills	Source
Bills sponsored	55	Source: Congress.gov member record, PORKER copy of October 26, 2026 ↗ See them →
With a sponsor’s constitutional-authority statement	47	See the 47 →
With a CBO cost estimate listed	0	None listed
With a committee report listed	1	See the 1 →

Evidence

How counted: Bills where this member is the lead (first-listed) sponsor in the 117th Congress, read from the stored Congress.gov bill records
Fields: cboCostEstimates, committeeReports, constitutionalAuthorityStatementText, notes
PORKER copy refreshed: October 26, 2026 (nightly)

Read this first. These are counts of records Congress.gov lists. Many bills never get a CBO estimate or a report, so a zero is not a mark against a member. We never show this as a score.

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Data as of Oct 26, 2026 · Sources: Congress.gov, Senate.gov, House Clerk, Appropriations Committee earmark tables. PORKER is non-partisan.