Montana Senate
Source: leg.mt.gov
Government Structure
The governance structure of Montana is based on a bicameral system, similar to the federal model, with power distributed across three branches: the Executive, the Judiciary, and the Legislative. The Legislative branch, the focus of this piece, is further divided into two chambers—the State Senate and the House of Representatives.
State Legislature Overview
The Montana Legislature is the heart of the state’s democratic process, responsible for drafting, debating, and passing laws that govern the residents. Comprising 150 members—50 State Senators and 100 Representatives—it is a vibrant, active body that reflects the diverse voices and perspectives of Montana’s citizens.
State Senate
The State Senate is one of the two chambers in the Montana Legislature. With 50 Senators, it is a crucial component of the legislative process. Senators are elected to four-year terms, with half of the seats up for election every two years, ensuring a balance of continuity and fresh perspectives. Through committees and full chamber debates, Senators scrutinize proposed legislation, provide oversight on public policy, and represent the interests of their constituents.
State House of Representatives
The State House of Representatives, the larger of the two chambers, comprises 100 members. Representatives serve two-year terms, with all seats up for election every two years. This chamber is where legislation often originates. The House prides itself on its dynamic debates and diligent legislative work, ensuring that every proposed law is thoroughly examined and deliberated upon.
Civic Engagement
Active civic engagement is at the core of the Montana Legislature’s functioning. Citizens are encouraged to voice their opinions, attend legislative sessions, and provide testimony on proposed legislation. This robust public involvement helps shape policy decisions and ensures lawmakers are responsive to the needs and concerns of their constituents.
Importance of Legislative Sessions
Legislative sessions in Montana hold immense significance as the epicenter of decision-making. It is during these sessions that lawmakers debate and vote on proposed laws, budgets, and other critical policy matters. These deliberations directly impact the state’s trajectory in areas such as public health, education, infrastructure, and the environment.
Accessing Legislative Sessions
Transparency is a key tenet of the Montana Legislature, and as such, legislative sessions are open to the public. Citizens can access these sessions either in-person or through live-streams available on the Legislature’s official website. This accessibility promotes openness and accountability, fostering trust between the government and its citizens.
How to Participate
Participation in the legislative process is not limited to elected officials. Citizens can participate by providing testimony at committee hearings, reaching out to their elected representatives, or even drafting legislation. The Legislature’s website provides resources on how to get involved, making the process accessible to all Montanans.
Statewide Impact
The decisions made by the Montana Legislature have a profound, statewide impact. From setting tax rates to determining education policy, the Legislature’s actions affect every aspect of life in Montana. This impact underscores the importance of citizen involvement and the vital role the Legislature plays in shaping the state’s future.
Key Policy Areas
The Montana Legislature delves into a wide range of policy areas, including but not limited to, education, healthcare, environment, and economic development. Each session brings its unique set of challenges and opportunities, with lawmakers striving to create policies that best serve the interests of their constituents and the state at large.
Conclusion
In conclusion, the Montana Legislature stands as a testament to the state’s commitment to democratic values, citizen engagement, and transparent governance. As the body responsible for shaping the state’s laws and policies, it plays an indispensable role in shaping Montana’s present and future. Its impact is felt by every resident, making it a critical institution in the state’s governance structure.
Montana State Senate
View All →Upcoming Montana State Senate Races
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IncumbentMike Cuffe Republican
General election
- Republican Nominee TBD
Democratic primary
In progress
Republican primary
state representative from the 1st district (2025–present)
former state representative from the 1st district (2017–2025)
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IncumbentJohn Fuller Republican
General election
state representative from the 6th district (2021–present)
nominee for this district in 2022 and for the second senate district in 2020
Democratic primary
In progress
nominee for this district in 2022 and for the second senate district in 2020
Republican primary
In progress
state representative from the 6th district (2021–present)
IncumbentMark Noland Republican
General election
incumbent senator
Democratic primary
In progress
Republican primary
In progress
incumbent senator
IncumbentSusan Webber Democratic
General election
nominee for the 100th state representative district in 2024
- Democrat Nominee TBD
Democratic primary
Heather Ackerman
state representative from the 16th district (2021–present)
Republican primary
In progress
nominee for the 100th state representative district in 2024
IncumbentButch Gillespie Republican
General election
- Republican Nominee TBD
Democratic primary
In progress
Republican primary
state representative from the 18th district (2019–present), former state senator (2011–2019) from the 9th (2015–2019) and 14th districts (2011–2015)
state representative (2023–present) from the 17th (2025–present) and 80th districts (2023–2025)
IncumbentJeremy Trebas Republican
General election
- Republican Nominee TBD
Democratic primary
In progress
Republican primary
IncumbentDaniel Emrich Republican

General election
- Republican Nominee TBD
Democratic primary
In progress
Republican primary
former state representative from the 24th district (2021–2025)
IncumbentWendy McKamey Republican
General election
- Democrat Nominee TBD
- Republican Nominee TBD
Democratic primary
Republican candidate for the 22nd state representative district in 2024 and the 11th state senate district in 2010
optometrist
Republican primary
state representative from the 26th district (2023–present)
state public service commissioner from the 1st district (2019–present)
IncumbentRussel Tempel Republican
General election
nominee for the 28th state representative district in 2024
- Republican Nominee TBD
Democratic primary
In progress
nominee for the 28th state representative district in 2024
Republican primary
state representative from the 28th district (2025–present)
IncumbentKen Bogner Republican
General election
nominee for the 36th state representative district in 2024
- Republican Nominee TBD
Democratic primary
In progress
nominee for the 36th state representative district in 2024
Republican primary
state representative (2023–present) from the 36th (2025–present) and 38th districts (2023–2025)
IncumbentBarry Usher Republican
General election
- Republican Nominee TBD
Democratic primary
In progress
Republican primary
incumbent senator
IncumbentDaniel Zolnikov Republican
General election
incumbent senator
- Democrat Nominee TBD
Republican primary
In progress
incumbent senator
IncumbentEmma Kerr-Carpenter Democratic
General election
incumbent senator
Democratic primary
In progress
incumbent senator
Republican primary
In progress
IncumbentDennis Lenz Republican
General election
educator
- Republican Nominee TBD
Democratic primary
In progress
educator
Republican primary
incumbent senator
IncumbentForrest Mandeville Republican
General election
incumbent senator
Democratic primary
In progress
Republican primary
In progress
incumbent senator
IncumbentJohn Esp Republican
General election
nominee for the 58th state representative district in 2024
state representative from the 57th district (2025–present)
Democratic primary
In progress
state representative from the 57th district (2025–present)
Republican primary
In progress
nominee for the 58th state representative district in 2024
IncumbentPat Flowers Democratic
General election
former state representative (2011–2017) from the 61st (2011–2015) and 65th districts (2015–2017)
Democratic primary
In progress
former state representative (2011–2017) from the 61st (2011–2015) and 65th districts (2015–2017)
Republican primary
In progress
IncumbentDenise Hayman Democratic
General election
businessowner and nominee for the 33rd state senate district in 2024 and the 61st state representative district in 2016
- Democrat Nominee TBD
Democratic primary
state representative from the 61st district (2025–present)
state representative from the 65th district (2021–present)
Republican primary
In progress
businessowner and nominee for the 33rd state senate district in 2024 and the 61st state representative district in 2016
IncumbentShelley Vance Republican

General election
- Republican Nominee TBD
Democratic primary
In progress
Republican primary
state representative from the 68th district (2021–present)
incumbent senator
IncumbentJanet Ellis Democratic
General election
businessowner
- Democrat Nominee TBD
- Republican Nominee TBD
Democratic primary
former member of the Helena School Board
Olsen, consultant and nominee for the Clerk of the Montana Supreme Court in 2024
IncumbentMary Ann Dunwell Democratic
General election
incumbent senator
- Republican Nominee TBD
Democratic primary
In progress
incumbent senator
Republican primary
IncumbentJason Ellsworth Republican
General election
- Republican Nominee TBD
Democratic primary
In progress
Republican primary
state representative from the 86th district (2019–present)
state representative from the 85th district (2025–present)
IncumbentAndrea Olsen Democratic
General election
incumbent senator
- Republican Nominee TBD
Democratic primary
In progress
incumbent senator
IncumbentWillis Curdy Democratic
General election
state representative from the 97th district (2015–present)
incumbent senator
Democratic primary
In progress
incumbent senator
Republican primary
In progress
state representative from the 97th district (2015–present)
IncumbentShane Morigeau Democratic
General election
incumbent senator
- Republican Nominee TBD
Democratic primary
In progress
incumbent senator
No races match those filters.
View MoreSenate Bills
View All →- SB 437Mar 25, 2026Revise definition of sex in Montana lawChapter Number Assigned
- SB 410Jul 19, 2025Provide for Montana genomic security act(S) Veto Override Failed in Legislature
- SB 424Jul 14, 2025Revising the disabled veteran property tax assistance program(S) Veto Override Failed in Legislature
- SB 422Jul 14, 2025Generally revise laws relating to insurance coverage relating to cancer(S) Veto Override Failed in Legislature
- SB 188Jul 14, 2025Revising solar energy policy laws(S) Veto Override Failed in Legislature
- SB 537Jul 11, 2025Generally revise marijuana tax laws(S) Veto Override Failed in Legislature
- SB 40Jun 27, 2025Revise supreme court public records laws by opening deliberations and files to the public(S) Veto Override Failed in Legislature
- SB 244Jun 18, 2025Revise laws related to health insurance coverage of behavioral health screening(S) Veto Override Failed in Legislature
- SB 72Jun 18, 2025Provide presumptive eligibility for Medicaid coverage of home and community-based services(S) Veto Override Failed in Legislature
- SB 232Jun 13, 2025Revise state procurement laws related to entitles that are exempt from the RFP process.Chapter Number Assigned
- SB 536Jun 12, 2025Revise contractor gross receipts tax(S) Veto Override Failed in Legislature
- SB 472Jun 12, 2025Revise penalties for violations under 310 permit process(S) Veto Override Failed in Legislature


