Senate District 24
Collar counties · currently held by R (Tracy Pennycuick)
Forecast
63%
chance Christopher David Thomas (D) wins
- Democrat
- Christopher David Thomas
- Republican
- Tracy E Pennycuick
- Others
- Michael Anthony Schonewolf Jr (Green)
- Rating
- Tilt D
- Expected margin
- D+2.3 (90% range R+9.1 to D+13.7)
- Chance of flipping
- 63.3%
- Tipping-point chance
- 13.8% (chance this seat decides control)
How the forecast was built
| Statewide generic legislative margin (environment) | D+6.6 |
| + District partisan lean | -1.1 |
| = Fundamentals before candidates | D+5.5 |
| + Incumbency advantage | -2.8 |
| + Incumbent's past over-performance (shrunk) | -0.4 |
| + Campaign finance (log receipts ratio) | -0.2 |
| + Target-list signal (pull toward even) | -1.5 |
| = Fundamentals margin | D+0.6 |
| District polls (1, average D+2.0, weight 40%) | +0.6 |
| External ratings prior (weight 33%) | +1.1 |
| Final expected margin | D+2.3 |
District-level error SD 5.6 pts; total with statewide and regional error ≈ 7.0 pts.
Inputs
Partisan lean (current lines)
| Race | District | Statewide | Lean | Weight |
|---|---|---|---|---|
| 2024 President | R+2.3 | R+1.8 | -0.5 | 0.45 |
| 2022 Governor | D+13.8 | D+15.0 | -1.2 | 0.2 |
| 2022 U.S. Senate | D+4.3 | D+5.0 | -0.7 | 0.2 |
| 2020 President | D+0.1 | D+1.1 | -1.0 | 0.15 |
Last legislative result (2022): R+4.0 vs a statewide legislative environment of D+0.7 → lean -1.9, blended at 30%.
Candidates & money
- Incumbent
- Tracy Pennycuick (R) — running
- Receipts (cycle)
- D $507,412 · R $705,071
- Target lists
- DLCC, PA_Senate_Dems, other
Past results in this district
| Year | Democrat | Republican | Margin |
|---|---|---|---|
| 2022 | Jill Dennin | Tracy E Pennycuick | R+4.0 |
District polls
| Pollster | Sponsor | End | n | Margin | Adjusted | Weight |
|---|---|---|---|---|---|---|
| State Navigate | none (State Navigate polling fund) | 2026-09-20 | 594 | D+2.0 | D+2.0 | 100% |
External ratings
| Source | Rating | Implied P(Dem) | Weight | As of |
|---|---|---|---|---|
| state_navigate | Lean D (lean d) | 79% | 0.25 | 2026-10-15 |
| ballotpedia | Toss-up (Battleground district) | 50% | 0.08 | 2026-10-15 |
Ratings are blended as a prior, not copied: they moved this seat's expected margin by +1.1 points.