Which party will win the House in 2028 Odds
Polymarket traders give Democratic Party a 78% chance (Kalshi: 80%).
| Outcome | Chance | Odds | 24h | Kalshi |
|---|---|---|---|---|
| Democratic Party | 78% | -344 | — | 80% |
| Republican Party | 24% | +326 | — | 20% |
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Price history
On Kalshi
The same question also trades on Kalshi. Check the resolution rules before comparing prices: small wording differences change what pays out.
Resolution rules
This market will resolve according to the party that wins control of the United States House of Representatives in the 2028 United States general election. A party wins control of the United States House of Representatives if it wins a majority of the chamber’s voting seats. If no party wins a majority of voting seats, the chamber will be deemed controlled by the party with which the first elected Speaker of the House of the Congress that convenes after the 2028 general election is affiliated. The following rules govern the counting of seats for determining which party wins control of the chamber. All House elections in the 2028 United States general election that elect voting members and determine representation in the upcoming 121st Congress are included. Where a seat is decided by a runoff, the runoff result will determine attribution of that seat. Seats are attributed to the party under which the member was elected. If a member-elect changes party affiliation, or vacates their seat, between election day and the formal organization of Congress, the seat is attributed to the party under which the member was elected. House members elected as independents who formally caucus with, or, for newly elected members, who announce their intent to caucus with, a party are included in that party’s count. If the caucus decisions of members of the House elected as independents cannot be determined on the date of the election, this market may remain open until the earlier of (i) an announcement from the relevant members of their intents to caucus, or (ii) January 4th, 11:59 PM ET of the following calendar year. If no such announcement is made by January 4th, 11:59 PM ET of the following calendar year, the member will not count towards the seat count of any party. The resolution sources for this market will be official information from relevant state electoral authorities, the United States Congress, and a consensus of credible reporting.
Source: Polymarket. The venue's rules are final.
FAQ
Who is favored in Which party will win the House in 2028?
As of Nov 8, 7:00 AM EST, traders on Polymarket price Democratic Party at 78%, about -344 in American odds. On Kalshi the same outcome trades at 80%. Prices move with every trade.
How are prediction market odds calculated?
Each contract pays $1 if the outcome happens and $0 if it doesn't, so its price is the market's implied probability: a 60¢ contract means roughly a 60% chance. We show the last trade, or the midpoint between the best bid and ask when the order book is tight.
When does this market close?
Polymarket lists Nov 8, 2028 as the end date. It can close earlier if the outcome is decided.
Where can I trade on Which party will win the House in 2028?
This market trades on Polymarket and a matching market trades on Kalshi. Availability depends on where you live: Kalshi is a CFTC-regulated US exchange, while Polymarket's international site isn't available to US users (Polymarket US is a separate app). You must be 18 or older.