Idaho Senate Race 2026

Latest sourced poll, full poll history, Cook and DDHQ ratings, and candidates. Research snapshot checked 2026-10-22.

Latest poll

Jim Risch (Republican)49%

Todd Achilles (Independent)24%

Peak Insights (R), fielded 2026-09-28 to 2026-09-30

Cook rating 2026-10-20 · DDHQ forecast 2026-10-22. Win chance, not vote share.

n=500 / Unknown. Poliwave

Lead of 25 pts for Jim Risch in a single poll. Not a win probability.

Seat / incumbent: Risch

Pollster	Field dates	Results	Sample / method	Source
Peak Insights (R)	2026-09-28 to 2026-09-30	Jim Risch (Republican) 49%Todd Achilles (Independent) 24%	n=500 / Unknown	Poliwave Original release
Advanced Targeting Research	2026-09-13 to 2026-09-16	Todd Achilles (Independent) 45.5%Jim Risch (Republican) 39.4%	n=700 / Statewide survey of registered Idaho voters, text (87.8%) and live interview (12.2%). Three-candidate ballot (with Libertarian) stored; two-candidate test was Achilles 50.1, Risch 38.5, not sure 11.4.	Poliwave Original release
Peak Insights (R)	2026-08-11 to 2026-08-13	Jim Risch (Republican) 52%Todd Achilles (Independent) 18%	n=500 / Unknown	Poliwave Original release
The Bullfinch Group	2026-08-04 to 2026-08-07	Jim Risch (Republican) 34%Todd Achilles (Independent) 30%	n=608 / The Bullfinch Group statewide poll of likely Idaho voters (release dated Aug 13, 2026). Field dates and sample size are not printed in the release; taken from the discovery index (Wikipedia) and should be confirmed.	Poliwave Original release
The Bullfinch Group	2026-05-29 to 2026-06-01	Jim Risch (Republican) 40%Todd Achilles (Independent) 36%	n=774 / Unknown	Poliwave Original release
Public Policy Polling (I)	2026-03-16 to 2026-03-17	Jim Risch (Republican) 48%Todd Achilles (Independent) 34%	n=639 / Unknown	Poliwave Original release

Polls via secondary aggregators, not independently audited. Not a live feed.

See this race in context on the tile map, colored by poll, DDHQ or Cook.