Upset Brief · TX-18 · Ronald Whitfield (R) vs. Christian Menefee (D), incumbent
A long shot on the math: it takes a 56.8-point national wave.
0%
odds today
0%
odds with the plan
101,469
net votes to find
Christian Menefee won
result of the November 3, 2026 election
Where
- 01+55Precinct 2108 (Fort Bend County)Starting line Menefee +44. 2.6% split their ticket.
- 02+55Precinct 281 (Harris County)Starting line Menefee +26. 6.3% split their ticket.
- 03+41Precinct 27 (Harris County)Starting line Menefee +51. 4.7% split their ticket.
- 04+40Precinct 194 (Harris County)Starting line Menefee +60. 4.8% split their ticket.
- 05+39Precinct 255 (Harris County)Starting line Menefee +29. 4.5% split their ticket.
- 06+39Precinct 209 (Harris County)Starting line Menefee +50. 4.4% split their ticket.
The top 12 precincts carry 18% of the plan.
How
- P+2,413Persuade2,413 voters who split their ticket in recent elections and lean Menefee today.
- M+6MobilizeFew precincts give Whitfield's side 55 percent or more, so turnout is a small lever here; the plan leans on persuasion instead.
- C+281ConsolidateVoters who went third party in recent races, in the closest places on the map.
Plus a national shift of 56.8 points of margin (98,769 votes) that no campaign controls.
What has to be true
- Whitfield wins 50 percent of the ticket splitters now leaning Menefee.
- It would take a national shift of about 56.8 points toward Whitfield's side, larger than any midterm swing in recent memory.
- 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 regression239 precincts, R² 0.986, 50 crossover precincts identified
- 02Monte Carlo20,000 seeded simulated elections with a 7-point baseline error. 90% range of the final margin with the plan: -118,949 to -78,901 votes.
- 03Money, FEC candidate totals through June 30Whitfield no FEC totals reported; Menefee $156,016.
- 04Call program for this list3,929 households, 11,787 dials, about 618 live conversations: an estimated $2,241 at published rates.
Independent analysis by The Political Group from official Texas 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.