Photo of Patrick O'Connor
R Massachusetts Senate · District First Plymouth and Norfolk On the 2026 ballot

Sen. Patrick O'Connor

Compare
Total votes
1,653
all sessions
Attendance
100%
3 missed
Near the chamber average
With party
94%
of cast votes
Lower than 96% of chamber peers
Bipartisan score
7%
crosses aisle rarely
Higher than 92% of chamber peers
Sponsored
3,125
bills & resolutions
Higher than 80% of chamber peers
Committees
9
assignments
3,125 bills and resolutions

Sponsored bills

Total
3,125
Primary
644
Co-sponsor
2,481
This page
3,125
matching current filters
Co-sponsor S 640
Passed · Massachusetts Senate · Co-sponsor
An Act promoting humane cosmetics and other household products by limiting the use of animal testing

By Mr. Montigny, a petition (accompanied by bill, Senate, No. 640) of Mark C. Montigny, John F. Keenan, Joanne M. Comerford, Michael O. Moore and other members of the General Court for legislation to promote humane cosmetics and other household products by limiting the use of animal testing. Environment and Natural Resources.

Passed Mar 12, 2026 1 co-sponsor
Co-sponsor S 1190
Passed · Massachusetts Senate · Co-sponsor
An Act enhancing the issuance of citations for cruel conditions for animals

Maddy summarySD 1398 expands protections for domestic animals by defining "cruel conditions" to include exposure to waste, lack of food/water, or inadequate weather protection, and explicitly includes livestock under "domestic animal." It imposes tiered fines for violations: up to $50 for a first offense, $200 for a second, and $500 for third or subsequent offenses, with possible animal impoundment or loss of ownership for repeat violations. The bill affects owners or keepers of all domestic animals, including livestock, by establishing clearer standards for animal care. Fines collected under this law must be deposited into the Homeless Animal Prevention and Care Fund.

Passed Mar 12, 2026 1 co-sponsor
Primary S 808
Passed · Massachusetts Senate · Lead sponsor
An Act relative to dental insurance consumer protections

Maddy summaryThis bill requires dental insurance plans to clearly disclose payment standards (like "usual and customary fees") and exact reimbursement amounts for dental services, including whether benefits cover only the least costly treatment. It mandates insurers to provide a free online resource for patients and dentists to access this information and ensures out-of-network dentists receive the same or higher payment as in-network providers. The bill also prohibits insurers from blocking patients' choice of licensed dentists, interfering with dental care decisions, or requiring unnecessary diagnostic tests. These changes aim to increase transparency and fairness in dental insurance coverage.

Passed Mar 5, 2026 0 co-sponsors
Co-sponsor S 1115
Passed · Massachusetts Senate · Co-sponsor
An Act to provide continuum of care for severe mental illness

Maddy summaryThis bill establishes a court-supervised outpatient treatment program for adults (18+) with severe mental illness who are at substantial risk of harm to self or others and unable to meet basic needs due to their condition, and who have a history of treatment non-adherence (including multiple hospitalizations or violent behavior). Authorized individuals - such as doctors, family members, or probation officers - can petition a court for a "critical community mental health service treatment plan," which must include supervision, medication, and assistance with housing, food, and other essentials. The court must determine this outpatient care is the least restrictive alternative before approving the plan, with initial orders limited to 180 days and renewals to 365 days. The program aims to prevent hospitalizations by providing structured community-based support.

Passed Mar 5, 2026 1 co-sponsor
Co-sponsor S 1138
Passed · Massachusetts Senate · Co-sponsor
An Act clarifying a right of a durable power of attorney

Maddy summaryThis bill clarifies that a person authorized under a durable power of attorney (a "settlor's agent") can legally create a trust on behalf of another person, as long as the agent follows specific rules in Chapter 190B of Massachusetts law. It directly affects individuals using durable powers of attorney for estate planning, ensuring their designated agents have clear legal authority to establish trusts. The key change adds "or the settlor’s agent" to existing trust creation provisions, explicitly including agents acting under a durable power of attorney. The bill does not alter the requirements for creating a durable power of attorney itself but makes the agent’s role in trust creation legally explicit.

Passed Feb 26, 2026 1 co-sponsor
Primary S 1231
Passed · Massachusetts Senate · Lead sponsor
An Act relative to preventing ocean littering

By Mr. O'Connor, a petition (accompanied by bill, Senate, No. 1231) of Patrick M. O'Connor for legislation relative to preventing ocean littering. The Judiciary.

Passed Feb 19, 2026 0 co-sponsors
Co-sponsor S 2946
Passed · Massachusetts Senate · Co-sponsor
An Act relative to modernizing the pathway to becoming a certified public accountant

Senate, February 5, 2026 -- The committee on Senate Ways and Means, to whom was referred the Senate Bill relative to modernizing the pathway to becoming a certified public accountant (Senate, No. 209),- reports, recommending that the same ought to pass with an amendment substituting a new draft with the same title (Senate, No. 2946).

Passed Feb 17, 2026 1 co-sponsor
Co-sponsor S 2864
In committee · Massachusetts Senate · Co-sponsor
An Act relative to the long-term fiscal health and sustainability of special education in the Commonwealth

December 15, 2025 -- The committee on Education, to whom was referred the petitions (accompanied by bill, Senate, No. 383) of John F. Keenan for legislation to create a facilities loan program for private special education schools; (accompanied by bill, Senate, No. 430) of Jacob R. Oliveira, Joanne M. Comerford, Vanna Howard, Michael D. Brady and other members of the General Court for legislation for a special commission to review and valuate the commonwealth’s current special education financing structure; (accompanied by resolve, Senate, No. 442) of Rebecca L. Rausch for legislation to establish a special commission on special education funding; (accompanied by bill, Senate, No. 454) of Bruce E. Tarr for legislation relative to conduct a study on the delivery of special education services; and (accompanied by bill, Senate, No. 455) of Bruce E. Tarr relative to the foundation funding of special education, report the accompanying bill (Senate, No. 2864).

In committee Feb 17, 2026 1 co-sponsor
Co-sponsor S 313
Passed · Massachusetts Senate · Co-sponsor
An Act strengthening transitional planning and increasing accountability for persons with disabilities and their families

By Ms. Comerford, a petition (accompanied by bill, Senate, No. 313) of Joanne M. Comerford, Hannah Kane, James K. Hawkins, Sal N. DiDomenico and other members of the General Court for legislation to strengthen transitional planning for persons with disabilities after high school graduation or the age of twenty-two. Education.

Passed Feb 17, 2026 1 co-sponsor
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