U.S. House · Updated Oct 9
Idaho's 2nd District
Michael Simpson win chance
>99%
Typical margin: Simpson by 18.5
Republican
Who's running
The numbers behind it
Campaign money
Michael Simpson
Raised $1.1M · $429K cash on hand · through Jun 30, 2026 · FEC filing ↗
Elinor Gilbreath
Raised $107K · $71K cash on hand · through Jun 30, 2026 · FEC filing ↗
Our model counts the money gap as worth 1.0 points to Michael Simpson. Even a 10× gap is worth at most 1.5.
Other filers in this race raised $36K in total.
Candidates' own committees only, from fec.gov. Third-quarter reports are due Oct 15.
How the numbers moved
- Sep 23Cook Political Report: Solid RCook Political Report
- Jun 30Elinor Gilbreath had raised $107KFEC filing
- Jun 30Michael Simpson had raised $1.1MFEC filing
How we got this number
We blend the polling average (when there is one) with the race's fundamentals: past results, incumbency, the national mood and the money. Then we play the election out 40,000 times, with polling misses that move every race together, and count how often each side wins.
90% of the model's 40,000 simulated elections land between R+30.9 and R+6.5.
No public polls yet, so this forecast rests on the fundamentals alone, with a wider range.
Our method ›