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the Map
Forecast6 days out
← GovernorsNovember 3, 2026

Colorado · Governor

Phil Weiser is almost certain to keep the Colorado governorship in Democratic hands. Predicted margin: D+21.2.

Phil Weiser (D)99 in 10059.054.2–63.9
Victor Marx (R)1 in 10037.833.0–42.7

Under each share, its likely range (80 in 100 simulations)

Background

Polis is term-limited; Weiser and Marx won their party primaries. The general election leans safely blue.

Solid DOpen seat

Forecast history

Steady0.0 pts · Oct 26 → Oct 28Colorado Governor: steady — the published margin moved 0.0 points between the Oct 26 and Oct 28 editions (3 of 47 stored editions). This is movement of the published forecast between editions.
D+24D+20D+16Aug 1Nov 3 · Election Day

Latest reading · Oct 28 · first published Sep 9 · 80% range · margin points D+11.5 to D+30.9. Methodology

 

About this series

Reconstructed with the current model Aug 1 – Sep 8 and Sep 16 – Sep 18; published readings Sep 9 – Oct 28. Each reconstructed day is the current model on that day’s own inputs, not a forecast published then. Corrections are dated in the changelog.

Faded: CTMM 2.2 reconstructed history: computed after the fact with each date's available polls and environment, without expert ratings; not an issued forecast. Issued forecasts begin at the launch marker.

CTMM 2.2 readings for 2026-09-16, 2026-09-17, 2026-09-18 were computed after the fact with each day's available inputs: no edition was issued on those days. Not an issued forecast.

Data table
DateMarginChance80% rangeReading
Oct 28D+21.2D win 98.9%D+11.5 to D+30.9Published forecast
Oct 27D+21.2D win 98.9%D+11.5 to D+30.9Published forecast
Oct 26D+21.2D win 98.9%D+11.5 to D+30.9Published forecast
Oct 25D+21.2D win 98.9%D+11.4 to D+30.9Published forecast
Oct 24D+21.2D win 98.9%D+11.4 to D+30.9Published forecast
Oct 23D+21.1D win 98.8%D+11.4 to D+30.9Published forecast
Oct 22D+21.1D win 98.9%D+11.4 to D+30.9Published forecast
Oct 21D+21.1D win 98.9%D+11.4 to D+30.9Published forecast
Oct 20D+21.1D win 98.8%D+11.3 to D+30.8Published forecast
Oct 19D+21.0D win 98.8%D+11.3 to D+30.8Published forecast
Oct 18D+21.0D win 98.8%D+11.2 to D+30.8Published forecast
Oct 17D+21.0D win 98.8%D+11.2 to D+30.8Published forecast
Oct 16D+20.9D win 98.8%D+11.1 to D+30.7Published forecast
Oct 15D+20.9D win 98.8%D+11.1 to D+30.7Published forecast
Oct 14D+20.9D win 98.8%D+11.1 to D+30.7Published forecast
Oct 13D+20.9D win 98.8%D+11.0 to D+30.7Published forecast
Oct 12D+20.8D win 98.8%D+11.0 to D+30.7Published forecast
Oct 11D+20.8D win 98.8%D+11.0 to D+30.7Published forecast
Oct 10D+20.9D win 98.8%D+11.0 to D+30.7Published forecast
Oct 9D+20.8D win 98.8%D+11.0 to D+30.7Published forecast
Oct 8D+20.8D win 98.8%D+11.0 to D+30.7Published forecast
Oct 7D+20.8D win 98.8%D+10.9 to D+30.6Published forecast
Oct 6D+20.7D win 98.8%D+10.8 to D+30.5Published forecast
Oct 5D+20.7D win 98.7%D+10.8 to D+30.5Published forecast
Oct 4D+20.7D win 98.7%D+10.8 to D+30.5Published forecast
Oct 3D+20.6D win 98.7%D+10.8 to D+30.5Published forecast
Oct 2D+20.6D win 98.6%D+10.7 to D+30.5Published forecast
Oct 1D+20.6D win 98.7%D+10.7 to D+30.5Published forecast
Sep 30D+20.7D win 98.7%D+10.8 to D+30.5Published forecast
Sep 29D+20.6D win 98.6%D+10.7 to D+30.5Published forecast
Sep 28D+20.6D win 98.7%D+10.7 to D+30.5Published forecast
Sep 27D+20.6D win 98.7%D+10.7 to D+30.5Published forecast
Sep 26D+20.6D win 98.6%D+10.7 to D+30.5Published forecast
Sep 25D+20.6D win 98.7%D+10.7 to D+30.5Published forecast
Sep 24D+20.5D win 98.7%D+10.6 to D+30.5Published forecast
Sep 23D+20.5D win 98.7%D+10.5 to D+30.4Published forecast
Sep 22D+20.4D win 98.6%D+10.5 to D+30.4Published forecast
Sep 21D+20.4D win 98.6%D+10.5 to D+30.4Published forecast
Sep 20D+20.4D win 98.7%D+10.5 to D+30.4Published forecast
Sep 19D+20.4D win 98.7%D+10.4 to D+30.4Published forecast
Sep 18D+20.5D win 98.7%D+10.5 to D+30.5Reconstructed with the stated inputs
Sep 17D+20.5D win 98.7%D+10.5 to D+30.5Reconstructed with the stated inputs
Sep 16D+20.4D win 98.7%D+10.5 to D+30.4Reconstructed with the stated inputs
Sep 15D+20.2D win 98.6%D+10.2 to D+30.2Published forecast
Sep 14D+20.3D win 98.6%D+10.3 to D+30.3Published forecast
Sep 13D+20.3D win 98.6%D+10.3 to D+30.3Published forecast
Sep 12D+20.3D win 98.6%D+10.3 to D+30.3Published forecast
Sep 11D+20.2D win 98.6%D+10.2 to D+30.3Published forecast
Sep 10D+20.1D win 98.6%D+10.1 to D+30.2Published forecast
Sep 9D+18.5D win 98.1%D+8.4 to D+28.5Published forecast
Sep 8D+20.1D win 98.7%D+10.0 to D+30.1Reconstructed with the stated inputs
Sep 7D+20.0D win 98.7%D+9.9 to D+30.0Reconstructed with the stated inputs
Sep 6D+20.0D win 98.7%D+9.9 to D+30.0Reconstructed with the stated inputs
Sep 5D+20.0D win 98.7%D+9.9 to D+30.0Reconstructed with the stated inputs
Sep 4D+19.9D win 98.6%D+9.9 to D+30.0Reconstructed with the stated inputs
Sep 3D+19.9D win 98.6%D+9.8 to D+30.0Reconstructed with the stated inputs
Sep 2D+19.9D win 98.6%D+9.8 to D+30.0Reconstructed with the stated inputs
Sep 1D+19.9D win 98.6%D+9.8 to D+30.0Reconstructed with the stated inputs
Aug 31D+19.9D win 98.6%D+9.8 to D+30.1Reconstructed with the stated inputs
Aug 30D+19.9D win 98.6%D+9.8 to D+30.0Reconstructed with the stated inputs
Aug 29D+20.0D win 98.6%D+9.8 to D+30.1Reconstructed with the stated inputs
Aug 28D+19.9D win 98.6%D+9.8 to D+30.0Reconstructed with the stated inputs
Aug 27D+19.9D win 98.6%D+9.8 to D+30.1Reconstructed with the stated inputs
Aug 26D+19.9D win 98.6%D+9.7 to D+30.0Reconstructed with the stated inputs
Aug 25D+19.9D win 98.6%D+9.8 to D+30.1Reconstructed with the stated inputs
Aug 24D+19.9D win 98.6%D+9.8 to D+30.1Reconstructed with the stated inputs
Aug 23D+19.9D win 98.6%D+9.7 to D+30.1Reconstructed with the stated inputs
Aug 22D+19.9D win 98.6%D+9.7 to D+30.1Reconstructed with the stated inputs
Aug 21D+19.9D win 98.5%D+9.7 to D+30.0Reconstructed with the stated inputs
Aug 20D+19.9D win 98.5%D+9.7 to D+30.1Reconstructed with the stated inputs
Aug 19D+19.9D win 98.5%D+9.7 to D+30.1Reconstructed with the stated inputs
Aug 18D+19.9D win 98.5%D+9.7 to D+30.1Reconstructed with the stated inputs
Aug 17D+19.9D win 98.5%D+9.7 to D+30.1Reconstructed with the stated inputs
Aug 16D+19.9D win 98.5%D+9.7 to D+30.1Reconstructed with the stated inputs
Aug 15D+19.9D win 98.5%D+9.7 to D+30.1Reconstructed with the stated inputs
Aug 14D+19.8D win 98.4%D+9.6 to D+30.1Reconstructed with the stated inputs
Aug 13D+19.8D win 98.4%D+9.6 to D+30.1Reconstructed with the stated inputs
Aug 12D+19.9D win 98.5%D+9.6 to D+30.1Reconstructed with the stated inputs
Aug 11D+19.8D win 98.4%D+9.6 to D+30.1Reconstructed with the stated inputs
Aug 10D+19.8D win 98.4%D+9.6 to D+30.1Reconstructed with the stated inputs
Aug 9D+19.8D win 98.4%D+9.6 to D+30.1Reconstructed with the stated inputs
Aug 8D+19.8D win 98.4%D+9.6 to D+30.1Reconstructed with the stated inputs
Aug 7D+19.8D win 98.4%D+9.6 to D+30.1Reconstructed with the stated inputs
Aug 6D+19.7D win 98.4%D+9.4 to D+30.0Reconstructed with the stated inputs
Aug 5D+19.7D win 98.4%D+9.4 to D+30.0Reconstructed with the stated inputs
Aug 4D+19.7D win 98.4%D+9.4 to D+30.0Reconstructed with the stated inputs
Aug 3D+19.7D win 98.4%D+9.4 to D+30.0Reconstructed with the stated inputs
Aug 2D+19.7D win 98.4%D+9.4 to D+30.0Reconstructed with the stated inputs
Aug 1D+19.7D win 98.4%D+9.4 to D+30.0Reconstructed with the stated inputs

How the margin was built

Tap an input for its calculation and source.

Toward D+21.9
Toward R−0.7
Forecast marginD+21.2

Displayed values are rounded.

All calculations & sources

How this state voted, 2024 +10.990 points

The state's presidential margin in 2024 as a share of all votes cast, from our own county sums — the same measurement the model's statewide terrain center is built from. Every pull below is measured from here, not from EVEN, which is why a landslide seat's listed pulls are small numbers and still land where the forecast does.

  • 2024 presidential result for this state, as a share of all votes cast, from Call the Map's own county sums.
  • Same source as Act I's 2024-president reference mark, so the origin lands on it.

Fitted model, above the terrain shown +4.493 points

What the fitted model adds on top of the starting terrain above — incumbency, past results, campaign finance and the other fitted terms — measured from that terrain rather than from EVEN. It is a comparison with the starting point already shown, not a separate input. The source detail lists the variables the fit uses.

  • Fitted baseline 15.483 minus starting point 10.990 = 4.493 points.
  • Fitted intercept: -6.136 points.
  • 2010 White population share used by the frozen historical fit: observed input 81.155. -0.503 × ((81.155 − 77.922) / 12.864) = -0.126 points.
  • gov_midterm_wh: observed input -1.000. -0.987 × ((-1.000 − 0.336) / 0.739) = 1.785 points.
  • 2024 presidential lean relative to the national result: observed input 12.793. 4.163 × ((12.793 − -4.415) / 20.258) = 3.536 points.
  • Previous governor election margin: observed input 19.350. 1.755 × ((19.350 − -3.131) / 19.227) = 2.053 points.
  • gov_inc_running_signed: observed input 0.000. 2.531 × ((0.000 − -0.120) / 0.708) = 0.428 points.
  • gov_inc_tenure_signed: observed input 0.000. 3.340 × ((0.000 − -0.143) / 0.902) = 0.529 points.
  • The displayed arithmetic is rounded; the fitted terms use full precision. The intercept plus these five terms gives the non-ratings baseline.
  • No source-verified current Gallup reading supports the former 40% / July 2026 claim. The current Gallup series ends in 2025; the Presidency Project identifies its 2026 observations as other pollsters. Use the unchanged fitted missing-value rule, not a replacement polling scale.
  • Certified 2024 presidential baseline: state D+11.3, national R+1.5; subtracting the national margin gives relative lean +12.8. Source: FEC compilation of certified state results.

Historical error calibration +3.586 points

A prior-election residual correction, when an admitted model publishes one.

  • The forecast’s calibration against past governor results. The recorded contribution is +3.6.

National environment +1.832 points

The contribution to this race’s margin, not the national polling margin itself. The race’s loading, reference level and polling blend determine how much of the national climate reaches its final forecast.

  • The national environment in this edition is D+8.4. This row is its contribution to the race’s prior, not a claim that the country is D+1.8.
  • This step’s recorded contribution to the margin is +1.8.
  • No admitted polling attenuates this contribution here; it reaches the final center in full.
  • The elasticity is fitted on the pooled panel of contested governor races (2010–2024) with cycle-clustered standard errors; it is a measured response to the national environment, not a judgment floor.

Structural safeguards +0.965 points

Bounded corrections that keep the model consistent with structural facts.

  • The forecast’s fitted center calibration for governor races, measured on past cycles. The recorded contribution is +1.0.

Votes for other candidates −0.686 points

Every step above is measured between the two major-party candidates alone, as if nobody else were on the ballot. The forecast sets 3.1% of the vote aside for other candidates and write-ins, so as a share of every vote cast the gap between the two is smaller by that much. This step is exactly that: the two-party margin times the share going to other candidates. It is the same arithmetic that turns the two-party margin into the two shares printed at the top of the page.

The components this edition publishes for this race, in points. “Other factors” closes the sum to the two-party structural lean exactly. The margin the page prints is a share of every vote cast, so the “Votes for other candidates” row carries the exact difference between the two-party lean and that margin; with it, the walk sums to the printed margin exactly.

Named factorContribution
FundamentalsThe admitted fitted baseline. Its surviving variables differ by office; the source detail above identifies those used for this race.+15.48
Historical calibrationThe House lane's calibration against certified past cycles.+3.59
National environmentThe national environment’s contribution to the prior. Polling can attenuate its influence; this value is not the national polling margin.+1.83
Structural terrain safeguardA bounded pull toward presidential terrain in heavily partisan states.+0.96
Other factors0.00

Where the votes are

The map of this race loads here.

Recent elections

ElectionResultVotes cast
2022 · Governor ↗D+19.32,508,830
2018 · Governor ↗D+10.62,525,062
2014 · Governor ↗D+3.32,041,605
2010 · Governor ↗D+39.91,793,148

Margins are the Democrat’s share of all votes cast minus the Republican’s.

Race context

Turnout, 2018 midterm
60.5% 2,583,580 ballots
Turnout, 2022 midterm
58.4% 2,540,666 ballots
2024 presidential margin
D+11.3between the two parties

Turnout is ballots cast statewide as a share of the voting-eligible population. Source: University of Florida Election Lab ↗

Population profile

White alone · 76.1%4,393,409 of 5,770,790 · Residents2022 Census · matched race geography

Coverage

4 quotes

All coverage and full posts on the Wire →

Forecast as of October 28, 2026: Call the Map currently has Phil Weiser ahead of Victor Marx by D+21.2, with a 99 in 100 chance to win. This is an open seat. That result would keep the seat with Democrats. No current nominee-matched poll average is available, so the forecast is leaning on the non-polling evidence shown below.