Senate · 2026

Idaho

Todd Achilles (I) vs. Jim Risch (R) · Incumbent: R

Recorded before the vote · November 1, 2026

Result: pending

Election Day is Tuesday, Nov 3. The actual margin will be posted here beside every prediction, with how far each one missed and in which direction.

Polling averages

None published.

Latest polls

No recent public polls found.

Forecasts and odds

Forecaster	Forecast	As of
PollCheck (pollcheck.co.uk)	Risch 73% to win (rated Lean R)	2026-10-31
Kalshi	Risch (R) 95¢; Achilles (I) 6¢ (contract prices, cents = implied %)	2026-11-01

Race ratings

Rater	Rating	As of
Cook Political Report	Solid R	2026-09-23
Inside Elections	Solid R	2026-09-17
Sabato's Crystal Ball	Safe R	2026-09-22

No Democrat on ballot (David Roth withdrew); independent Natalie Fleming also listed. PollCheck rated it Lean R (Risch 73%), average Risch 46.1%, Achilles 42.0% (updated 31 Oct; its table displayed 'Risch +5.1' vs computed R+4.1).