Iowa 4th District
Currently held by a Republican · open seat
Democrat
Dave Dawson
2%
Republican
Chris McGowan
98%
ForecastSafe R
- Projected margin
- R+27.4
- 80% range
- R+42.5 to R+12.2
- Partisan lean
- R+30.2
- Uncertainty multiplier
- 2.01×
The 80% range comes from 200,000 simulations in which this race’s error is correlated with every other race through the national, state and demographic layers.
How the estimate is built
100.0%
Fundamentals 100.0%
- Polling average
- no polls
- Fundamentals
- R+26.8
- Blended
- R+26.8
- Similar-race shift
- +1.4
Polling
No public polling of this matchup. The forecast rests on fundamentals plus the polling residuals of demographically and politically similar races — which is the normal case: most of the 435 House seats are never polled.
Fundamentals
- Partisan lean
- R+30.2
- Elasticity
- 1.01
- Incumbency
- 0.0
- Candidate experience
- 0.0
- Fundraising
- −2.9
- National environment
- D+5.3
- Expected margin
- R+28.1