See who’s favored, what could decide control, and where the model sees the most uncertainty across the 2026 House, Senate, and governor races.
The exact split is the single most likely outcome in the model's distribution. Projected seats summarize each party's model-wide seat estimate, so the two figures can differ.
Democrats are strongly favored to regain the House majority with a 90.4% probability, driven by a baseline of 217 non-tossup seats compared to 205 for Republicans. The central model output projects a 225 Democratic to 210 Republican seat breakdown, with an expected average of 222.5 Democratic to 210.0 Republican seats. Battleground uncertainty is concentrated in 12 toss-ups including AL-02, CA-48, and CO-08, alongside competitive Lean Democratic seats like AZ-01, AZ-06, and CA-22. A realistic path to reversing this forecast would require a systematic polling error or late shifts across Western and Sunbelt battlegrounds favoring the GOP.
Shaded by projected rating or holdover representation
House Projected Seats
218 seats needed for majority
Expected seats: D 222.5, R 210.0 , Other 2.5
Probability of final Republican/Democratic seat splits
Forecast Ratings Breakdown
Democrats carry a 90.4% chance of securing House control, with a projected seat breakdown of 225 Democratic to 210 Republican.
Democrats are favored because their baseline of 217 non-tossup seats leaves them just one seat shy of a 218-seat majority prior to resolving the 12 toss-up contests. Their strong structural position is anchored by Lean Democratic advantages in crucial Sunbelt and West Coast suburban seats like AZ-01, AZ-06, CA-01, and CA-22, alongside an expansive defense of Likely Democratic seats such as CA-13, CA-45, CA-47, and CO-07. This yields a high floor that virtually guarantees control across most simulation outcomes, driving their expected mean of 222.5 seats.
The GOP's narrow 9.6% path to victory requires defending all 205 of its non-tossup seats—including Lean Republican districts like AK-AL, AR-02, AZ-02, and CO-03—while sweeping nearly all 12 toss-up races, such as AL-02, CA-48, and CO-08. To cross the 218-seat threshold, Republicans must also flip Lean Democratic territory such as AZ-01, AZ-06, CA-01, or CA-22.
Uncertainty centers on whether Republicans can sweep close toss-ups like AL-02, CA-48, and CO-08 while threatening Lean Democratic districts like AZ-01 and CA-22, or if Democrats will convert those holds to hit their projected 225-seat peak.
Two July polls (both Democratic-affiliated) show Figures and likely GOP nominee Marques tied 44-45, while redistricting cut the district's Black VAP from ~49% to under 40%, substantially shifting the terrain.
An open seat in a redrawn district with a slight Democratic registration edge, where the only head-to-head poll shows von Wilpert leading Desmond 48%-46%, within the ±4.
This district has flipped parties in both prior elections (D 2022, R 2024) and remains a genuine battleground with no numeric candidate polling to separate two well-funded, strong-profile candidates.
Incumbent Nick Begich III holds a structural edge as a sitting House member in a Republican-leaning state with a dominant fundraising lead (over $5M raised, ~$3.
The newly drawn D+7 district, designed via Proposition 50 to favor Democrats, gives McGuire a structural edge once the combined Democratic primary vote (roughly 51-56%) consolidates behind him in the general.
Incumbent Republican Eli Crane holds structural advantages in this R+7 district, having beaten the same challenger, Jonathan Nez, by about nine points in 2024, and prediction markets favor him at ~69%.
Incumbent Republican Jeff Hurd holds structural advantages in this R+5 district: a large cash-on-hand edge (~$1.
The R+5 district and Cook 'Likely Republican' rating give the GOP a structural edge, but incumbent Cory Mills faces a House Ethics investigation, a DOJ probe, and domestic allegations that erode his incumbency advantage.
Open-seat race in a competitive swing district (Trump +3 in 2024, Biden +1.