How many House seats will Democrats hold after the Midterms?
Short Answer
Democrats are not expected to hold above 249 House seats after the Midterms; expert consensus and the market's central estimate converge on 235-239 seats, while the market prices this outcome at 25.0% against a model at 14.7%.
1. Market Behavior & Drivers
The contract price has repriced higher as market consensus solidifies around a Democratic hold of 235-238 House seats. Aggregate prediction market data from October 29-30 shows a median forecast of 235.2 to 238.2 Democratic seats. This emerging consensus is the primary driver behind the contract's price move from 12.0% on October 16 to 25.0% by October 30.
The most significant price action occurred in the last week of the month, concurrent with the reporting of these aggregate forecasts. The available information does not cite specific external news events, such as polling data or candidate developments, as catalysts. The upward trend appears to reflect the market internalizing and consolidating its own aggregate forecast for the election outcome. Total traded volume reached 321,796 contracts during this repricing.
- Since last update (~84d): The 222-225 seat range saw a model-led probability drop of -11.5pp, flipping the edge.
- Market probability for Above 249 seats increased +15.8pp, widening the edge with the market leading.
- The 238-241 seat range experienced a model-led gain of +9.3pp, which widened the edge.
- The 226-229 seat range saw a model-led probability drop of -11.0pp, flipping the edge.
- Expert forecasts converge on 238-241 Democratic seats, establishing a central estimate.
- A Democratic majority is strongly favored, with 234-245 seats aligning with various predictions.
Who Wins and Why
| Outcome | Market | Model | Why |
|---|---|---|---|
| Above 249 | 25.0% | 14.7% | Most expert forecasts project a central estimate well below 249 seats. |
| Below 210 | 3.3% | 2.9% | This outcome is far below a majority and contradicts the consensus that Democrats will win House control. |
| 214-217 | 3.4% | 3.0% | This outcome is highly inconsistent with expert forecasts and market indicators of Democratic House control. |
| 218-221 | 3.2% | 2.8% | This range is significantly lower than most expert forecasts' central estimate of 235-239 seats. |
| 210-213 | 2.5% | 2.2% | This contradicts the strong consensus from forecasters that Democrats will control the House with a comfortable majority. |
Current Context
Prediction markets project Democrats holding 235-238 House seats. As of October 29–30, 2026, the February 1, 2027 Democratic House-seat prediction market estimates a median range of 235.2 to 238.2 seats, with the middle 50% falling between 227.5 and 246.4 seats [1][2][3][4][5]. The leading individual outcome is over 249 seats, priced at approximately 23%–24% [1][2][3][4][5]. Other significant outcome ranges include 238–241 seats at 12.5%–14%, 234–237 seats at 12%–15%, and 242–245 seats at 11%–12% [1][2][3][4][5]. All 435 House seats are contested on November 3, 2026, with 218 seats required for a majority. Seat-count markets settle on February 1, 2027 [6][7][8][9][10].
Democratic control of the House is highly probable across forecasts. Decision Desk HQ assigns an 80% chance of Democratic control, projecting 238 seats [11]. Kalshi indicates about 91.8% for Democratic control, while Polymarket places it at roughly 93% [8][9][10]. Expert and media analyses also lean Democratic. Sabato's Crystal Ball rates 223 seats as at least Lean Democratic, 200 as at least Lean Republican, and 12 as toss-ups, suggesting Democrats should approach 235 seats and could exceed this [12]. Cook estimates Democrats may flip between 12 and 22 seats [13]. NBC scenarios show Democratic seat counts ranging from approximately 220 to 263, depending on the national swing [6][7]. Broader House/Senate combination markets imply a Democratic congressional sweep near 66%, compared to about 29% for a Democratic House with a Republican Senate [9]. A "Blue Wave" contract, requiring at least 218 Democratic House seats and 49 Democratic Senate seats, is priced around 75% [9][14].
Democrats likely to secure a House majority, short of a landslide. As of October 30, 2026, the most probable outcome for Democrats is holding approximately 235–240 House seats, with a central estimate near 237 [1][2][3][4][5]. The market indicates a Democratic majority is highly likely but does not currently make a 250-plus seat landslide the base case [1][2][3][4][5].
Sources (14)
- 1How many House seats will Democrats hold after the Midterms? (Feb 1, 2027): Odds, Chart & News | 4Search Predictions4search.com
- 2How many House seats will Democrats hold after the Midterms? Odds & Predictions - Public.compublic.com
- 3How many House seats will Democrats hold… — Odds & Prices | DOXAdoxa.pro
- 4How many House seats will Democrats hold after the Midterms? (Feb 1, 2027): Odds, Chart & News | 4Conservative Predictions4conservative.com
- 52026 House Control | Qwidgetsqwidgets.com
- 6Election 2026: How Democrats could win the House, how Republicans could hold onnbcnews.com
- 7How to tell if Democrats are heading for a landslide...cnn.com
- 8Who will control the House? 2026 House Control Odds & Predictions | Kalshikalshi.com
- 9Midterms: Congress Balance of Power?kalshi.com
- 10Which party will win the House in 2026? Predictions & Odd...polymarket.com
- 112026 Midterm Predictions: House & Senate Forecast | DDHQvotes.decisiondeskhq.com
- 12The House: 28 Rating Changes Push Number of Seats at Least Leaning to Democrats Past 218 - Sabato's Crystal Ballcenterforpolitics.org
- 13Democrats may flip between 12 and 22 seats, Cook Political Report estimates - The Washington Postwashingtonpost.com
- 14Blue wave in 2026? | Prediction Markets | Coinbasecoinbase.com
2. Price Chart
Historical Price (Probability)
Outcome probability
Date
3. Market Data
Contract Snapshot
This prediction market, focused on the "Above 249" contract, resolves "YES" if Democrats hold more than 249 U.S. House seats as of February 1, 2027. Conversely, a "NO" resolution occurs if Democrats hold 249 or fewer seats on that date. The market begins trading on November 3 at 7:00 am EST, with the resolution and maximum payout tied to the official House composition on February 1, 2027.
Available Contracts
Market options and current pricing
| Outcome bucket | Yes (price) | No (price) | Last trade probability |
|---|---|---|---|
| Above 249 | $0.26 | $0.75 | 25% |
| 238-241 | $0.14 | $0.87 | 13% |
| 234-237 | $0.12 | $0.89 | 12% |
| 242-245 | $0.13 | $0.88 | 12% |
| 246-249 | $0.10 | $0.90 | 10% |
| 230-233 | $0.09 | $0.92 | 9% |
| 226-229 | $0.07 | $0.93 | 7% |
| 222-225 | $0.05 | $0.95 | 5% |
| 214-217 | $0.03 | $0.97 | 3% |
| Below 210 | $0.03 | $0.97 | 3% |
| 218-221 | $0.03 | $0.97 | 3% |
| 210-213 | $0.03 | $0.97 | 3% |
Market Discussion
As of October 30, 2026, prediction markets heavily favor Democrats to regain control of the U.S. House of Representatives, pricing their chance at approximately 91-92% [1][2][3]. The most likely seat count for Democrats is projected in the high 230s, with major political forecasters and market analyses citing averages around 235 to 238 seats [1][4][5][6][7][8]. Some market outcomes also indicate significant probability for Democrats to secure 'Above 249' seats, and traders are actively using 'Election Combos' to bet on a 'Democratic Sweep' (House and Senate control) at 65-68% probability [1][4][9][10].
Sources (10)
- 1How many House seats will Democrats hold after the Midterms?electionodds.live
- 2House Odds & Predictions 2026kalshi.com
- 3House Seat Predictions 2026: How Many Seats Will Democrats Hold?defirate.com
- 42026 House Control | Qwidgetsqwidgets.com
- 52026 Midterm odds: Kalshi traders forecast Democrats to win 238 House seatsnews.kalshi.com
- 6Democrats are favored to win control of the U.S. House in...facebook.com
- 7Nate Silver: Polling 'would have to be very wrong' for...thehill.com
- 8Trump’s favorite pollster says Democrats will win big in the midterms and have substantial majority in House | The Independentindependent.co.uk
- 9Kalshi Election Combos Bring Multi-Leg Trading to Midterms - DeFi Ratedefirate.com
- 10Balance of Power: 2026 Midterms Predictions & Oddspolymarket.com
4. Trust Index
How it adds up
Integrity80% of score94Strong
Trade quality20% of score76Good
Trust score90Strong
Weighted blend with hard caps — a critically weak safety pillar, or a severe trading anomaly, caps the total regardless of the rest. Full methodology · About the Trust Index
Trust profile
Integrity4 screens run · 6 don't apply
5. What evidence from non-partisan forecasters like the Cook Political Report and Sabato's Crystal Ball supports the market's projection of a 235-240 seat Democratic majority in 2026?
| Market Projection Democratic Majority | 235-240 [1][2][3][4] |
|---|---|
| Abramowitz Projected Democratic House Seats | 239 [3] |
| Cook Political Report Democratic gain estimate | 12 to 22 seats [2] |
Non-partisan forecasters largely support a 235-240 Democratic House majority in 2026. The market's projection of a 235-240 Democratic majority in 2026 is supported by assessments from non-partisan forecasters, including Sabato’s Crystal Ball and the Cook Political Report [1][2][3][4]. Sabato’s Crystal Ball offered a qualitative assessment nearing 235 seats, and its statistical model projected 239 Democratic House seats [3]. The Cook Political Report confirmed a likely Democratic majority, albeit with a more conservative upper range [2][3][4].
Sabato’s Crystal Ball indicated a strong Democratic advantage with specific district ratings. Its October 20 House assessment rated 223 districts as at least Leans Democratic, compared to 200 districts at least Leans Republican, with 12 districts identified as Toss-ups [5][6]. This analysis suggested Democrats could approach or exceed their 2018 total of 235 seats [3]. Additionally, Sabato modeler Alan Abramowitz’s October 29 generic-ballot model projected 239 Democratic House seats and 196 Republican seats, based on an approximate 8-point Democratic generic-ballot lead [3]. This model estimated a roughly two-thirds probability range of a 15-to-33-seat Democratic gain [3].
The Cook Political Report projected a Democratic majority, but with a conservative estimate. Its late-October update moved 19 races toward Democrats, including six from Toss Up to Lean Democrat, and stated that the Republican path to retaining the House had "all but evaporated" [2]. Cook estimated a Democratic gain of 12 to 22 seats, implying approximately 227 to 237 Democratic seats from the cited baseline [2]. While this range supports a Democratic majority, its district-based upper limit of 237 seats was somewhat below the market’s 235-240 center [2][3][4]. The strongest evidence for a 235-240 outcome is the convergence of Sabato’s near-235 qualitative assessment, Abramowitz’s 239-seat statistical projection, and a large Democratic generic-ballot advantage [1][2][3]. This 235-240 projection should be interpreted as a central scenario rather than a precise forecaster consensus, with a New York Times scorecard summarizing the evidence as pointing to this range [3][4].
Sources (6)
- 1These are the House races to watch in the 2026 midterm...wypr.org
- 2Map Shows Closest House Races as Cook Shifts 19 Seats...newsweek.com
- 3Generic Ballot Models Predict Blue Wave Next Weekcenterforpolitics.org
- 4The Midterms Are Next Week. Here's Who We Think Will Win.nytimes.com
- 5The House: 28 Rating Changes Push Number of Seats at...centerforpolitics.org
- 62026 House Archives - Sabato's Crystal Ballcenterforpolitics.org
6. How do the DCCC and NRCC's fundraising totals and cash-on-hand for the 2026 cycle compare, particularly for targeting toss-up districts identified by Decision Desk HQ?
| NRCC Cash on Hand (Sept 30, 2026) | $61.34 million [1][2] |
|---|---|
| DCCC Cash on Hand (Sept 30, 2026) | $55.78 million [1][2] |
| Decision Desk HQ House Forecast | Democrats 80% chance of winning [3] |
The National Republican Congressional Committee (NRCC) holds a financial advantage over the Democratic Congressional Campaign Committee (DCCC) in the 2026 cycle. As of September 30, 2026, the NRCC reported $61.34 million in cash on hand, exceeding the DCCC's $55.78 million [1][2]. This represents a $5.56 million lead for the NRCC. During September, the NRCC also led in monthly receipts with $28.51 million, compared to the DCCC's $26.30 million, a $2.21 million difference. The NRCC disbursed $56.27 million during the same period, which was $9.80 million more than the DCCC's $46.46 million [1][2]. This financial lead for the NRCC in both cash on hand and September receipts continued a trend observed earlier in the 2026 cycle, where the NRCC had also led in cash on hand at June 30, 2026, with $92.7 million against the DCCC's $79.0 million [1][2].
Despite the NRCC's financial edge, forecasts favor Democrats for House control. Decision Desk HQ's (DDHQ) 2026 House forecast initially predicted an 80% chance of Democrats winning control of the chamber, projecting 238 Democratic seats, and identified key toss-up districts as crucial to the outcome [3][4]. An October 29 update to the forecast, reflecting methodological adjustments, projected 231 Democratic seats, 192 Republican seats, and 12 toss-up seats [5][6]. This indicates that while fundraising data shows a Republican advantage in committee cash available for deployment, DDHQ's modeling prioritizes the outcomes within these crucial toss-up districts over the overall fundraising gap [3][4].
Sources (6)
- 1Party committee fundraising, 2025-2026ballotpedia.org
- 2Statistical Summary of 18-Month Campaign Activity of the...fec.gov
- 32026 Midterm Predictions: House & Senate Forecast | DDHQvotes.decisiondeskhq.com
- 4Toss-ups, triage and targets: How to read the wide-open...wbur.org
- 52026 House Election Predictions: Forecast & Odds | DDHQvotes.decisiondeskhq.com
- 6DDHQ FORECAST UPDATE (10/29): House FL-4: Likely-R...facebook.com
7. Beyond presidential approval, what economic or geopolitical events between now and November 2026 could significantly shift the generic ballot polls and alter the House landscape?
| Tariff cost | Average household about $920 in 2026 [1][2][3][4] |
|---|---|
| Generic ballot lead | Democrats roughly 8-10 points ahead [5][3][4] |
| Republican redistricting benefit | About a four-seat net benefit [3][4][6] |
Economic and geopolitical events could significantly shift generic ballot polls. Ongoing affordability concerns, such as inflation and energy costs, are identified as voters' top concern [1][3][4]. A major late-cycle geopolitical-economic risk is the Iran conflict, particularly disruption to the Strait of Hormuz, which could increase gasoline prices, inflation, and recession risks [1][2][3]. Additionally, trade-policy escalation, like new tariffs estimated to cost the average household about $920 in 2026, could quickly worsen prices and business confidence [1][2][3][4]. Labor market deterioration, through rising unemployment or AI-related displacement, would also likely shift the generic ballot [5][3][4]. Immigration and foreign-policy escalation beyond Iran also remain plausible issue shocks, potentially impacting perceptions of competence, security, fiscal costs, and prices [1][3][4].
Democrats currently hold a substantial lead in generic ballot polls. The current market baseline indicates Democrats are roughly 8–10 points ahead on the generic ballot, suggesting Republicans' House edge may disappear [5][3][4]. Therefore, the most consequential events are those that could move the outcome from a narrow majority toward 225–235 seats or a larger wave above 240 [5][3][4][6][7]. However, redistricting and geography reportedly provide Republicans about a four-seat net benefit, limiting how much a national generic-ballot move translates into seats and requiring shocks to affect marginal districts [3][4][6].
Sources (7)
- 1From the Iran War to Gas Prices: How Foreign Policy Is...cfr.org
- 22026 Midterms: Seven Questions That Matter for Marketsmorganstanley.com
- 3These are the House races to watch in the 2026 midterm...npr.org
- 42026 Midterms: Can the Democrats Retake the House and...news.northeastern.edu
- 5Q&A: Brown University political scientist offers insights...brown.edu
- 6House Seat Predictions 2026: How Many Seats Will Democrats Hold?defirate.com
- 72026 Midterm Election Predictions & Odds: Live Senate, House & Governor Forecasts | Kalshikalshi.com
8. Which pollsters and data sources provide the most reliable district-level polling for the toss-up races identified by Inside Elections for the 2026 midterms?
| Primary Source for District Races | The Cook Political Report's Battleground District Project [1][2][3] |
|---|---|
| Democratic Polling Firm | New River Strategies [1][2][3] |
| Nonpartisan Forecaster | Inside Elections [4][5][6] |
Reliable district-level polling often emerges from collaborative initiatives. Data for competitive district-level races frequently comes from projects like The Cook Political Report's Battleground District Project [1][2][3]. This initiative partners with specialized polling firms for both parties, including the Democratic firm New River Strategies and the Republican firm GS Strategy Group, to survey likely voters in contested districts [1][2][3]. While the specific pollsters providing data solely for the toss-up races identified by Inside Elections are not explicitly detailed, Inside Elections itself is recognized as a dependable nonpartisan forecaster for 2026 House district ratings [4][5][6].
Statistical forecasting models integrate diverse data for predictions. Other entities, such as The Economist and Decision Desk HQ, employ statistical forecasting models that integrate both national and district-level polling alongside fundamental data to project race outcomes and total seat counts for the House [3][7].
Sources (7)
- 1New Battleground District Poll Shows Democrats Up...cookpolitical.com
- 2How 2026 midterm election polling data is collected by...nbcnews.com
- 3US House of Representatives 2026 forecasteconomist.com
- 4Houseinsideelections.com
- 5CPR Race Ratingscookpolitical.com
- 6US Midterm Elections 2026 Polls, Odds and Race Ratingsriotimesonline.com
- 7House Seat Predictions 2026: How Many Seats Will Democrats Hold?defirate.com
9. What specific scenarios or 'wave' conditions outlined by forecasters like NBC News could lead to the high-end outcome of Democrats winning over 249 House seats in 2026?
| Target House Seats | Over 249 (Democrats) [1] |
|---|---|
| Generic Ballot Lead (NBC Poll) | D+6 (50%-44%) [1] |
| Potential California Gains | Up to five House seats [1] |
Winning over 249 House seats requires a significant electoral wave. A Democratic victory exceeding 249 House seats in 2026 is described as a "compound blue-wave" or "tsunami" event, indicating a performance substantially greater than central forecasts [1]. This outcome would necessitate a national generic-ballot advantage that significantly expands beyond the current D+5.5 to D+6 lead, potentially reaching upper single digits [1]. For instance, a March 2026 NBC poll showed Democrats leading the generic congressional ballot 50%-44% (+6), accompanied by heightened Democratic voter interest [1].
Several key conditions must align for Democrats to achieve this outcome. This high-end scenario is predicated on sustained presidential unpopularity and weakness on key issues, alongside unusually strong Democratic enthusiasm [1]. Furthermore, Democrats would need to perform efficiently across competitive districts, securing victories in both core targets and numerous second-tier races, thus demonstrating a broad electoral wave [1]. Favorable map effects are also critical, particularly in California, where a voter-approved Democratic map could lead to gains of as many as five House seats. Republican losses in open or vulnerable seats would also contribute significantly to this result [1].
10. What Could Change the Odds
Key Catalysts
Market-implied central estimates for Democratic House seats after the November 3, 2026 midterms approximate 238. Kalshi reported an average projection of 238.3 seats on October 26 [1]. Democrats are strongly favored to control the House, with Polymarket showing 92% and PredictDesks approximately 92% overall [2][3]. The electoral setup begins with a narrow Republican starting edge of about 218 seats against 214 for Democrats, one independent caucusing with Republicans, and two vacancies; 218 seats generally constitutes the majority threshold [4][2][5].
Bullish catalysts for Democratic seat-count markets include a sustained Democratic generic-ballot advantage, strong early turnout, Republican-held toss-ups breaking Democratic, and issue-linked backlash [4][2][5]. NBC cited a 52%–43% Democratic preference for House control [4]. CBS reported more than 42 million early votes by October 29 [5]. The February 1, 2027 settlement horizon focuses on post-election seat-count and House-control settlement [6].
Conversely, bearish catalysts for Democrats encompass Republican incumbents benefiting from favorable district geography and redistricting, lower or older turnout resembling 2022, local candidate effects, and late polling error [4][2][5]. NBC showed a demographic-adjusted scenario of about 220 Democratic seats, while CBS modeled a low case of 215 [4][2][5].
Key Dates & Catalysts
- Expiration: February 01, 2027
- Closes: February 01, 2027
Sources (6)
- 12026 Midterm odds: Kalshi traders forecast Democrats to win 238 House seatsnews.kalshi.com
- 2https://polymarket.com/predictions/midtermspolymarket.com
- 3House control 2026 odds: who will win the House? (live)predictdesks.com
- 4Election 2026: How Democrats could win the House, how Republicans could hold onnbcnews.com
- 5Live Updates: 2026 midterm campaigns make final push before Election Day as early voters hit the pollscbsnews.com
- 6How many House seats will Democrats win in the Midterms? Odds & Predictions 2026kalshi.com
