IncumbentMike Cuffe Republican
General election
- Jonathan Russell Jameson Democrat
- Steve Gunderson Republican
former state representative from the 1st district (2017–2025)
Primaries
Democratic primary
Republican primary
former state representative from the 1st district (2017–2025)
state representative from the 1st district (2025–present)
//candidatefiling.mt.gov/candidatefiling/CandidateList.aspx?e=450002928 |website=Montana Secretary of State |access-date=28 May 2026}}