Upset Brief · CO-01 · Christy Peterson (R) vs. Melat Kiros (D)
A long shot on the math: it takes a 56.5-point national wave.
0%
odds today
0%
odds with the plan
170,208
net votes to find
37
days left; voting starts October 2
Where
- 01+71Precinct 1310216225 (Denver County)Starting line Kiros +54. 11.6% split their ticket.
- 02+69Precinct 1310216205 (Denver County)Starting line Kiros +34. 12.8% split their ticket.
- 03+68Precinct 1310216227 (Denver County)Starting line Kiros +39. 10.5% split their ticket.
- 04+64Precinct 1310216211 (Denver County)Starting line Kiros +46. 9.2% split their ticket.
- 05+62Precinct 1310916901 (Denver County)Starting line Kiros +48. 8.7% split their ticket.
- 06+60Precinct 1310216218 (Denver County)Starting line Kiros +23. 10.6% split their ticket.
The top 12 precincts carry 11% of the plan.
How
- P+5,983Persuade5,983 voters who split their ticket in recent elections and lean Kiros today.
- M+0MobilizeThere are almost no precincts Peterson's side carries, so turnout alone cannot help here.
- C+431ConsolidateVoters who went third party in recent races, in the precincts that lean Peterson's way.
Plus a national shift of 56.5 points of margin (163,794 votes) that no campaign controls.
What has to be true
- Peterson wins 50 percent of the ticket splitters now leaning Kiros.
- The national environment moves about 56.5 points toward Peterson'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 regression304 precincts, R² 0.929, 55 crossover precincts identified
- 02Monte Carlo20,000 seeded simulated elections with a 7-point baseline error. 90% range of the final margin with the plan: -196,995 to -130,135 votes.
- 03Money, FEC candidate totals through June 30Peterson $1,703 cash on hand; Kiros $126,406.
- 04Call program for this list9,106 households, 27,318 dials, about 1,431 live conversations: an estimated $4,290 at published rates.
Independent analysis by The Political Group from official Colorado 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.