Riding profile

CO-5

US House district — CO · Mixed · us co

The question

CO-5: who wins this toss-up?

Current forecast

Republican

Toss-up

Probability
97%
Mean margin (pts)
3.2
P(close race)
86%

Projected vote share

Projection by party

  • Republican 50.5%

    Jeff Crank incumbent

  • Democrat 47.3%

    Jessica Willow Killin

  • Other 2.2%

Watch list

The tightest races

Smallest projected margin. Open one for the numbers.

  1. FL-22Democrat68 %1.1 pt margin
  2. AZ-2Republican57 %1.1 pt margin
  3. OH-10Democrat60 %1.1 pt margin

In context

How this riding stacks up

Republican Democrat Other
HereCO-5 50.5%47.3%2.2%
National averageUnited States 44.9% +5.6 54.3% −7.0 5.1% −2.9

Nationwide averages computed across the 435 riding-level projections (unweighted mean).

Projection track

How the projection has moved

District polls

Polls in this district

2 polls

Pollster Field dates Sample Pop. Topline Source
Global Strategy Group 16–Jul 21 450 LV
Republican 45 Democrat 44
link
Global Strategy Group Oct 30 – Nov 3 450 LV
Republican 43 Democrat 40
link

District-level polls, topline only. Vote-Scope reports each published poll as the pollster released it; figures are not the Vote-Scope projection.

Editorial read

CO-5, a mixed riding in CO, elected a member with the Republicans in the previous cycle, with a 14-point margin. The Vote-Scope model projects the Republicans ahead at 50% vote share, against 47% for the Democrats, and the race could swing.

Sitting member

CRANK, JEFF

Sits with Republican

Primary race

Primary results

Held Jun 30, 2026 · Certified official result

Democratic primary

Winner

Jessica Killin 61.2%

45,511 votes

Republican primary

Winner

Jeff Crank 100.0%

76,547 votes

Official source →

Who's running

The candidates

Declared and on-ballot candidates for the upcoming election.

  • Republican Incumbent

    Crank, Jeff

  • Democrat Challenger

    Killin, Jessica Willow

Previous election · 2024

Won by
Republican
Margin
13.8 pts
Margin shift vs current projection
-10.6 pts
Last model run
Cycle
us_house_2026