Upset Brief · CA-27 · Jason Gibbs (R) vs. George Whitesides (D), incumbent
A long shot on the math: it takes a 7.1-point national wave.
13%
odds today
16%
odds with the plan
14,869
net votes to find
37
days left; voting starts October 5
Where
- 01+830Santa ClaritaStarting line Gibbs +1. 1.8% split their ticket.
- 02+156Los AngelesStarting line Whitesides +25.
- 03+141LancasterStarting line Whitesides +8. 0.6% split their ticket.
- 04+131Unincorporated Los Angeles CountyStarting line Gibbs +4. 1.2% split their ticket.
- 05+121PalmdaleStarting line Whitesides +13.
The top 5 cities and unincorporated areas carry 100% of the plan.
How
- P+1,009Persuade1,009 voters who split their ticket in recent elections and lean Whitesides today.
- M+0MobilizeThere are almost no cities and unincorporated areas Gibbs's side carries, so turnout alone cannot help here.
- C+371ConsolidateVoters who went third party in recent races, in the cities and unincorporated areas that lean Gibbs's way.
Plus a national shift of 7.1 points of margin (13,489 votes) that no campaign controls.
What has to be true
- Gibbs wins 50 percent of the ticket splitters now leaning Whitesides.
- The national environment moves about 7.1 points toward Gibbs's side between now and November 3.
- No 2026 public poll exists for this race, so the starting line is a weighted blend of official recent results; the first real poll will move it.
The numbers behind it
- 01Crossover regression283 precincts, R² 0.975, 94 crossover precincts identified
- 02Monte Carlo20,000 seeded simulated elections with a 7-point baseline error. 90% range of the final margin with the plan: -35,296 to 8,789 votes.
- 03Money, FEC candidate totals through June 30Gibbs $201,877 cash on hand; Whitesides $2,554,917.
- 04Call program for this list2,123 households, 6,370 dials, about 334 live conversations: an estimated $1,317 at published rates.
Independent analysis by The Political Group from official California Secretary of State precinct returns (2022 and 2024), FEC filings and published polls, as of September 26, 2026. Not affiliated with any candidate or party.