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Rep. Tom O’Halleran

Former Representative for Arizona’s 1st District

pronounced tom // oh-HAL-uh-run

O’Halleran was the representative for Arizona’s 1st congressional district and was a Democrat. He served from 2017 to 2022.

Photo of Rep. Tom O’Halleran [D-AZ1, 2017-2022]


Legislative Metrics

Read our 2022 Report Card for O’Halleran.

Ideology–Leadership Chart

O’Halleran is shown as a purple triangle in our ideology-leadership chart below. Each dot was a member of the House of Representatives in 2022 positioned according to our ideology score (left to right) and our leadership score (leaders are toward the top).

The chart is based on the bills O’Halleran sponsored and cosponsored from Jan 3, 2017 to Dec 27, 2022. See full analysis methodology.

Enacted Legislation

O’Halleran was the primary sponsor of 11 bills that were enacted. The most recent include:

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Does 11 not sound like a lot? Very few bills are ever enacted — most legislators sponsor only a handful that are signed into law. But there are other legislative activities that we don’t track that are also important, including offering amendments, committee work and oversight of the other branches, and constituent services.

We consider a bill enacted if one of the following is true: a) it is enacted itself, b) it has a companion bill in the other chamber (as identified by Congress) which was enacted, or c) if at least about half of its provisions were incorporated into bills that were enacted (as determined by an automated text analysis, applicable beginning with bills in the 110th Congress).

Bills Sponsored

Issue Areas

O’Halleran sponsored bills primarily in these issue areas:

Native Americans (36%) Health (22%) Public Lands and Natural Resources (14%) Energy (11%) Agriculture and Food (5%) Education (5%)

Recently Introduced Bills

O’Halleran recently introduced the following legislation:

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Most legislation has no activity after being introduced.

Voting Record

Key Votes

O’Halleran voted Yea

O’Halleran voted Yea

O’Halleran voted Yea

Passed 327/85 on Dec 21, 2020.

This bill became the vehicle for passage of the Consolidated Appropriations Act, 2021, a major government funding bill, which also included economic stimulus provisions due …

O’Halleran voted Yea

O’Halleran voted Yea

Passed 235/179 on Jun 8, 2018.

H.R. 5895 provides funding for national defense nuclear weapons activities, the Army Corps of Engineers, various programs under the Department of Energy, the Legislative Branch, …

O’Halleran voted Aye

Passed 237/184 on Jan 17, 2018.

If the World Bank doesn’t live up to some of its promises for supporting human rights, fighting terrorism, and promoting democracy, should the U.S. government …

O’Halleran voted Yea

Passed 231/188 on Dec 21, 2017.

This bill was the vehicle for passage of legislation to avert a government shutdown. The final legislation included * the Further Additional Continuing Appropriations Act, …

Missed Votes

From Jan 2017 to Dec 2022, O’Halleran missed 44 of 3,162 roll call votes, which is 1.4%. This is on par with the median of 2.0% among the lifetime records of representatives serving in Dec 2022. The chart below reports missed votes over time.

We don’t track why legislators miss votes, but it’s often due to medical absenses, major life events, and running for higher office.

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Primary Sources

The information on this page is originally sourced from a variety of materials, including: