Forrest J Mandeville

Incumbent State Senator in Columbus, MT

Forrest J Mandeville is a candidate for State Senator District 28 in Montana State Senate District 28, Montana — 2026 Primary Election.

Also running: Kelly Hale.

Forrest J. Mandeville is an incumbent Republican State Senator for Montana's District 28, representing Columbus and Red Lodge. He has extensive legislative experience, serving three terms in the Montana House (2015, 2017, 2019) before his initial Senate election in 2022, now in his second Senate session for 2025. Mandeville serves on the Senate Finance and Claims Committee. His legislative work has focused on land use and subdivision laws, with several sponsored bills becoming law in 2023. He also introduced legislation on election laws, sports betting, and environmental definitions. His voting record consistently aligns with fellow Republicans. Mandeville is seeking re-election in the 2026 Primary Election for District 28.