Sen. Shannon O'Brien

Second-session Democrat from Missoula

Representing Senate District 46

Missoula, East Missoula, Seeley Lake

(406) 274-3805 • Shannon.OBrien@legmt.gov

Bills •Key votes •Stats •Committees •2022 election margin

O'Brien previously served in the Montana Senate in 2021.

Bills sponsored

📋 SJ 7: Joint resolution recognizing Ireland on St. Patrick's Day Shannon O'Brien (D)📃 Bill text	✅1st Cmte. ✅Senate ✴️House
📋 SB 8: Revise transformational learning program laws Shannon O'Brien (D)📃 Bill text	✅1st Cmte. ✅Senate ✴️House ⚪️Gov.
📋 SB 10: Clarify school finance laws related to general fund levies Shannon O'Brien (D)📃 Bill text 💵 Fiscal note	✅1st Cmte. ✅Senate ✴️House ⚪️Gov.
📋 SB 15: Provide for all ages homeowner and renter tax credit Shannon O'Brien (D)📃 Bill text 💵 Fiscal note	🚫1st Cmte. ⚪️Senate ⚪️House ⚪️Gov.
📋 SB 69: Clarify school transportation laws related to passenger vehicles Shannon O'Brien (D)📃 Bill text	✅1st Cmte. ✅Senate ✴️House ⚪️Gov.
📋 SB 70: Revise the Quality Educator Loan Assistance Program Shannon O'Brien (D)📃 Bill text 💵 Fiscal note 📰 1 MTFP story	✅1st Cmte. ✅Senate ✴️House ⚪️Gov.

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Key bill votes

Most recent votes on bills identified as notable by MTFP staff.

O'Brien (D)	Outcome	Republicans	Democrats	Motion
YES	Y (37-12)	Y (34-0)	N (3-12)	SB 85 – Do Pass
YES	Y (47-2)	Y (34-0)	Y (13-2)	SB 115 – Do Pass
NO	Y (34-15)	Y (34-0)	N (0-15)	SB 121 – Do Pass
NO	Y (28-21)	Y (28-6)	N (0-15)	SB 154 – Do Pass
NO	Y (33-17)	Y (33-1)	N (0-16)	SB 191 – Do Pass

Floor vote statistics

Calculations based on 342 Senate floor votes in 2023 involving bills.

🥇 80%

of votes cast on winning side

Average for Senate Democrats is 79%.

🔴 77%

of votes cast on side taken by most Republicans

Average for Senate Democrats is 76%.

🔵 97%

of votes cast on side taken by most Democrats

Average for Senate Democrats is 95%.

O'Brien has been marked absent or excused for 0 votes. Average for Senate lawmakers is 4.1.

Committee assignments

Senate Taxation - Vice Chair
Senate Education and Cultural Resources
Senate Agriculture, Livestock and Irrigation
Senate Ethics
Senate Rules
Senate Legislative Administration
Joint Rules

SD 46 election results

Last in-cycle for Senate election in 2020. House seats are elected every two years, Senate seats every four.

General election vote, 2020

Won by 32% (4,066 votes)

Party primary vote, 2020

Won by 36% (1,875 votes)

Governor vote in district, 2020

Won by 32% (4,219 votes)

Montana Free Press coverage

MTFP legislative reporting involving O'Brien.

Nothing currently tagged in our archive.

About the 2023 Montana Free Press Capitol Tracker

This guide is an effort to make the quantifiable aspects of the Montana Legislature more accessible to the public by compiling information about lawmakers, proposed bills and the legislative process. This is a project of Montana Free Press, a 501(c)(3) nonprofit newsroom that aims to provide Montanans with in-depth, nonpartisan news coverage.

The information presented here is collected from a variety of sources including the Montana Legislature’s public roster and its official bill-tracking system, the Legislative Automated Workflow System, or LAWS. Reporting and web design was done primarily by MTFP Deputy Editor Eric Dietrich. Please contact him at edietrich@montanafreepress.org with bug reports, questions or suggestions.

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2023 Capitol Tracker

The lawmakers, bills and votes of the 68th Montana Legislature