Idaho Senate Race Odds 2026
Prices as of 2026-09-19 18:30 UTC.
Kalshi has Jim Risch at 92%; Polymarket has Jim Risch (R) at 95%.
| Candidate / party | Kalshi | Polymarket | Gap |
|---|---|---|---|
| David Roth D | <1% bid 0¢ · ask 1¢ · OI $24k | <1% vol $15k | -0 pts |
| Jim Risch R | 92% bid 92¢ · ask 95¢ · OI $43k | 95% vol $21k | -3 pts |
| Todd Achilles (I) | — | 3% vol $459 | — |
Idaho Senate 2026 — Kalshi · Jim Risch · Polymarket · Jim Risch (R) · last 90 days
How the Kalshi market resolves
If a representative of the Republican party is sworn in as a Senator of Idaho for the term beginning in 2027, then the market resolves to Yes.