U.S. House · Updated Oct 9
South Carolina's 4th District
William R Timmons IV win chance
>99%
Typical margin: Timmons by 19.5
Republican
Who's running
The numbers behind it
Campaign money
William R Timmons IV
Raised $1.6M · $77K cash on hand · through Jun 30, 2026 · FEC filing ↗
Courtney McClain
Raised $33K · $1K cash on hand · through Sep 30, 2026 · FEC filing ↗
Our model counts the money gap as worth 1.5 points to William R Timmons IV. Even a 10× gap is worth at most 1.5.
Other filers in this race raised $235K in total.
Candidates' own committees only, from fec.gov. Third-quarter reports are due Oct 15.
How the numbers moved
- Sep 30Courtney McClain had raised $33KFEC filing
- Sep 23Cook Political Report: Solid RCook Political Report
- Jun 30William R Timmons IV had raised $1.6MFEC 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+31.5 and R+7.1.
No public polls yet, so this forecast rests on the fundamentals alone, with a wider range.
Our method ›