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
  1. 01
    Precinct 1310216225 (Denver County)
    Starting line Kiros +54. 11.6% split their ticket.
    +71
  2. 02
    Precinct 1310216205 (Denver County)
    Starting line Kiros +34. 12.8% split their ticket.
    +69
  3. 03
    Precinct 1310216227 (Denver County)
    Starting line Kiros +39. 10.5% split their ticket.
    +68
  4. 04
    Precinct 1310216211 (Denver County)
    Starting line Kiros +46. 9.2% split their ticket.
    +64
  5. 05
    Precinct 1310916901 (Denver County)
    Starting line Kiros +48. 8.7% split their ticket.
    +62
  6. 06
    Precinct 1310216218 (Denver County)
    Starting line Kiros +23. 10.6% split their ticket.
    +60

The top 12 precincts carry 11% of the plan.

How
  • P
    Persuade
    5,983 voters who split their ticket in recent elections and lean Kiros today.
    +5,983
  • M
    Mobilize
    There are almost no precincts Peterson's side carries, so turnout alone cannot help here.
    +0
  • C
    Consolidate
    Voters who went third party in recent races, in the precincts that lean Peterson's way.
    +431

Plus a national shift of 56.5 points of margin (163,794 votes) that no campaign controls.

What has to be true
  1. Peterson wins 50 percent of the ticket splitters now leaning Kiros.
  2. The national environment moves about 56.5 points toward Peterson's side between now and November 3.
  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
  • 01
    Crossover regression
    304 precincts, R² 0.929, 55 crossover precincts identified
  • 02
    Monte Carlo
    20,000 seeded simulated elections with a 7-point baseline error. 90% range of the final margin with the plan: -196,995 to -130,135 votes.
  • 03
    Money, FEC candidate totals through June 30
    Peterson $1,703 cash on hand; Kiros $126,406.
  • 04
    Call program for this list
    9,106 households, 27,318 dials, about 1,431 live conversations: an estimated $4,290 at published rates.
For the campaign

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Professional live callers on exactly these voters: persuasion, voter ID and ballot chase, with a live dashboard of every conversation. An estimated $4,290 for the full list. Days to launch.

For donors, PACs and committees

Fund the contact, see every call.

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The full plan, the map and the live odds simulator ›All Colorado races ranked ›

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.