99chambers

Horizon · our Election Day forecast: polls, plus fundamentals like incumbency, fundraising and past results.

Pulse · polls only: where the races stand today, with no fundamentals and wider uncertainty.

What's the difference?

Montana · Montana Senate District 29 · Updated Oct 16, 2026

Jason Gunderson

Republican

Nominee for the 58th state representative district in 2024

2026 race · Montana Senate District 29

8% chance of winning · race rated Likely D

92%8%

30% chance of winning · race rated Lean D

70%30%
● Scott Rosenzweig● Jason Gunderson
Full race forecast

Background

Experience
No elected office
Past races on file
1 (0 won)

Links: Candidate list (source)

Electoral history

Earlier races in Montana, newest first, matched by name in the results archive.

  1. 2024

    House of Representatives · HD-58 Nov 5, 2024

    R · 46.4% · 3,196 votes

    Lost

Opponents in 2026