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Politics·Democrats

2026 Midterms: House Popular Vote Margin of Victory

icon for 2026 Midterms: House Popular Vote Margin of Victory
Politics·Democrats

2026 Midterms: House Popular Vote Margin of Victory

Democrats 8-10% 16%

Democrats 6-8% 14%

Democrats 4-6% 13%

Democrats 10-12% 12%

Polymarket

$31,166 Vol.

Democrats 8-10% 16%

Democrats 6-8% 14%

Democrats 4-6% 13%

Democrats 10-12% 12%

Polymarket

$31,166 Vol.

icon for Democrats 16%+

Democrats 16%+

$181 Vol.

4%

icon for Democrats 14-16%

Democrats 14-16%

$302 Vol.

6%

icon for Democrats 12-14%

Democrats 12-14%

$187 Vol.

2%

icon for Democrats 10-12%

Democrats 10-12%

$801 Vol.

12%

icon for Democrats 8-10%

Democrats 8-10%

$580 Vol.

16%

icon for Democrats 6-8%

Democrats 6-8%

$416 Vol.

14%

icon for Democrats 4-6%

Democrats 4-6%

$181 Vol.

13%

icon for Democrats 2-4%

Democrats 2-4%

$812 Vol.

4%

icon for Democrats 0-2%

Democrats 0-2%

$869 Vol.

5%

icon for Republicans 0-2%

Republicans 0-2%

$195 Vol.

7%

icon for Republicans 2-4%

Republicans 2-4%

$25,796 Vol.

7%

icon for Republicans 4-6%

Republicans 4-6%

$188 Vol.

1%

icon for Republicans 6%+

Republicans 6%+

$659 Vol.

1%

This market will resolve according to the popular vote margin of victory between the Democratic Party and the Republican Party in the US House of Representatives midterm elections, scheduled for November 3, 2026. For the purpose of this market, the “popular vote margin of victory” is defined as the absolute difference between the percentage of valid votes cast for all Democratic Party House candidates and the percentage of valid votes cast for all Republican Party House candidates in this election. The percentage of the valid votes cast for each party’s House candidates will be determined by dividing the total number of valid votes that party’s House candidates receive by the sum of all valid votes cast for U.S. House candidates in the election. Only votes cast for candidates for U.S. Representative (voting members of the House of Representatives from districts in the 50 states) will be considered; votes for Delegates and the Resident Commissioner will not be considered. If the reported value falls exactly between two brackets, then this market will resolve to the higher range bracket. This market will resolve based on the vote totals as published by the US Clerk of the House. Any recount included in the Clerk of the House’s publication will be considered. If the US House of Representatives midterm elections do not take place by June 30, 2027, 11:59 PM ET, this market will resolve to "Other". The resolution source for this market will be the 2026 midterm election results published by the US Clerk of the House (https://history.house.gov/Institution/Election-Statistics/). If the 2026 midterm elections take place, and the Clerk of the House does not publish the results of this election by June 30, 2027, 11:59 PM ET, another credible resolution source may be chosen.Trader consensus favors "Other" at 45.5% alongside modest Democratic popular vote leads of 4-10% in the 2026 House midterms, reflecting generic ballot polling averages showing Democrats ahead by 2-6 points nationally as of mid-April 2026. Declining presidential approval ratings for Donald Trump, dipping below 40% in recent CNN and Reuters surveys amid economic concerns and policy debates, have widened the Democratic edge on trackers from Nate Silver, RealClearPolling, and Morning Consult. Historical midterm penalties for the incumbent party—averaging 7-point generic ballot deficits—reinforce this positioning, though high uncertainty this far from November favors close outcomes. Key upcoming special elections in April and early primaries could shift dynamics in battleground districts.

This market will resolve according to the popular vote margin of victory between the Democratic Party and the Republican Party in the US House of Representatives midterm elections, scheduled for November 3, 2026.

For the purpose of this market, the “popular vote margin of victory” is defined as the absolute difference between the percentage of valid votes cast for all Democratic Party House candidates and the percentage of valid votes cast for all Republican Party House candidates in this election. The percentage of the valid votes cast for each party’s House candidates will be determined by dividing the total number of valid votes that party’s House candidates receive by the sum of all valid votes cast for U.S. House candidates in the election. Only votes cast for candidates for U.S. Representative (voting members of the House of Representatives from districts in the 50 states) will be considered; votes for Delegates and the Resident Commissioner will not be considered.

If the reported value falls exactly between two brackets, then this market will resolve to the higher range bracket.

This market will resolve based on the vote totals as published by the US Clerk of the House. Any recount included in the Clerk of the House’s publication will be considered.

If the US House of Representatives midterm elections do not take place by June 30, 2027, 11:59 PM ET, this market will resolve to "Other".

The resolution source for this market will be the 2026 midterm election results published by the US Clerk of the House (https://history.house.gov/Institution/Election-Statistics/). If the 2026 midterm elections take place, and the Clerk of the House does not publish the results of this election by June 30, 2027, 11:59 PM ET, another credible resolution source may be chosen.
Volume
$31,166
End Date
Nov 3, 2026
Market Opened
Feb 18, 2026, 7:24 PM ET

Resolver

0x69c47De9D...
This market will resolve according to the popular vote margin of victory between the Democratic Party and the Republican Party in the US House of Representatives midterm elections, scheduled for November 3, 2026. For the purpose of this market, the “popular vote margin of victory” is defined as the absolute difference between the percentage of valid votes cast for all Democratic Party House candidates and the percentage of valid votes cast for all Republican Party House candidates in this election. The percentage of the valid votes cast for each party’s House candidates will be determined by dividing the total number of valid votes that party’s House candidates receive by the sum of all valid votes cast for U.S. House candidates in the election. Only votes cast for candidates for U.S. Representative (voting members of the House of Representatives from districts in the 50 states) will be considered; votes for Delegates and the Resident Commissioner will not be considered. If the reported value falls exactly between two brackets, then this market will resolve to the higher range bracket. This market will resolve based on the vote totals as published by the US Clerk of the House. Any recount included in the Clerk of the House’s publication will be considered. If the US House of Representatives midterm elections do not take place by June 30, 2027, 11:59 PM ET, this market will resolve to "Other". The resolution source for this market will be the 2026 midterm election results published by the US Clerk of the House (https://history.house.gov/Institution/Election-Statistics/). If the 2026 midterm elections take place, and the Clerk of the House does not publish the results of this election by June 30, 2027, 11:59 PM ET, another credible resolution source may be chosen.
This market will resolve according to the popular vote margin of victory between the Democratic Party and the Republican Party in the US House of Representatives midterm elections, scheduled for November 3, 2026. For the purpose of this market, the “popular vote margin of victory” is defined as the absolute difference between the percentage of valid votes cast for all Democratic Party House candidates and the percentage of valid votes cast for all Republican Party House candidates in this election. The percentage of the valid votes cast for each party’s House candidates will be determined by dividing the total number of valid votes that party’s House candidates receive by the sum of all valid votes cast for U.S. House candidates in the election. Only votes cast for candidates for U.S. Representative (voting members of the House of Representatives from districts in the 50 states) will be considered; votes for Delegates and the Resident Commissioner will not be considered. If the reported value falls exactly between two brackets, then this market will resolve to the higher range bracket. This market will resolve based on the vote totals as published by the US Clerk of the House. Any recount included in the Clerk of the House’s publication will be considered. If the US House of Representatives midterm elections do not take place by June 30, 2027, 11:59 PM ET, this market will resolve to "Other". The resolution source for this market will be the 2026 midterm election results published by the US Clerk of the House (https://history.house.gov/Institution/Election-Statistics/). If the 2026 midterm elections take place, and the Clerk of the House does not publish the results of this election by June 30, 2027, 11:59 PM ET, another credible resolution source may be chosen.Trader consensus favors "Other" at 45.5% alongside modest Democratic popular vote leads of 4-10% in the 2026 House midterms, reflecting generic ballot polling averages showing Democrats ahead by 2-6 points nationally as of mid-April 2026. Declining presidential approval ratings for Donald Trump, dipping below 40% in recent CNN and Reuters surveys amid economic concerns and policy debates, have widened the Democratic edge on trackers from Nate Silver, RealClearPolling, and Morning Consult. Historical midterm penalties for the incumbent party—averaging 7-point generic ballot deficits—reinforce this positioning, though high uncertainty this far from November favors close outcomes. Key upcoming special elections in April and early primaries could shift dynamics in battleground districts.

This market will resolve according to the popular vote margin of victory between the Democratic Party and the Republican Party in the US House of Representatives midterm elections, scheduled for November 3, 2026.

For the purpose of this market, the “popular vote margin of victory” is defined as the absolute difference between the percentage of valid votes cast for all Democratic Party House candidates and the percentage of valid votes cast for all Republican Party House candidates in this election. The percentage of the valid votes cast for each party’s House candidates will be determined by dividing the total number of valid votes that party’s House candidates receive by the sum of all valid votes cast for U.S. House candidates in the election. Only votes cast for candidates for U.S. Representative (voting members of the House of Representatives from districts in the 50 states) will be considered; votes for Delegates and the Resident Commissioner will not be considered.

If the reported value falls exactly between two brackets, then this market will resolve to the higher range bracket.

This market will resolve based on the vote totals as published by the US Clerk of the House. Any recount included in the Clerk of the House’s publication will be considered.

If the US House of Representatives midterm elections do not take place by June 30, 2027, 11:59 PM ET, this market will resolve to "Other".

The resolution source for this market will be the 2026 midterm election results published by the US Clerk of the House (https://history.house.gov/Institution/Election-Statistics/). If the 2026 midterm elections take place, and the Clerk of the House does not publish the results of this election by June 30, 2027, 11:59 PM ET, another credible resolution source may be chosen.
Volume
$31,166
End Date
Nov 3, 2026
Market Opened
Feb 18, 2026, 7:24 PM ET

Resolver

0x69c47De9D...
This market will resolve according to the popular vote margin of victory between the Democratic Party and the Republican Party in the US House of Representatives midterm elections, scheduled for November 3, 2026. For the purpose of this market, the “popular vote margin of victory” is defined as the absolute difference between the percentage of valid votes cast for all Democratic Party House candidates and the percentage of valid votes cast for all Republican Party House candidates in this election. The percentage of the valid votes cast for each party’s House candidates will be determined by dividing the total number of valid votes that party’s House candidates receive by the sum of all valid votes cast for U.S. House candidates in the election. Only votes cast for candidates for U.S. Representative (voting members of the House of Representatives from districts in the 50 states) will be considered; votes for Delegates and the Resident Commissioner will not be considered. If the reported value falls exactly between two brackets, then this market will resolve to the higher range bracket. This market will resolve based on the vote totals as published by the US Clerk of the House. Any recount included in the Clerk of the House’s publication will be considered. If the US House of Representatives midterm elections do not take place by June 30, 2027, 11:59 PM ET, this market will resolve to "Other". The resolution source for this market will be the 2026 midterm election results published by the US Clerk of the House (https://history.house.gov/Institution/Election-Statistics/). If the 2026 midterm elections take place, and the Clerk of the House does not publish the results of this election by June 30, 2027, 11:59 PM ET, another credible resolution source may be chosen.

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Frequently Asked Questions

"2026 Midterms: House Popular Vote Margin of Victory" is a prediction market on Polymarket with 13 possible outcomes where traders buy and sell shares based on what they believe will happen. The current leading outcome is "Democrats 8-10%" at 16%, followed by "Democrats 6-8%" at 14%. Prices reflect real-time crowd-sourced probabilities. For example, a share priced at 16¢ implies that the market collectively assigns a 16% chance to that outcome. These odds shift continuously as traders react to new developments and information. Shares in the correct outcome are redeemable for $1 each upon market resolution.

As of today, "2026 Midterms: House Popular Vote Margin of Victory" has generated $31.2K in total trading volume since the market launched on Feb 19, 2026. This level of trading activity reflects strong engagement from the Polymarket community and helps ensure that the current odds are informed by a deep pool of market participants. You can track live price movements and trade on any outcome directly on this page.

To trade on "2026 Midterms: House Popular Vote Margin of Victory," browse the 13 available outcomes listed on this page. Each outcome displays a current price representing the market's implied probability. To take a position, select the outcome you believe is most likely, choose "Yes" to trade in favor of it or "No" to trade against it, enter your amount, and click "Trade." If your chosen outcome is correct when the market resolves, your "Yes" shares pay out $1 each. If it's incorrect, they pay out $0. You can also sell your shares at any time before resolution if you want to lock in a profit or cut a loss.

The current frontrunner for "2026 Midterms: House Popular Vote Margin of Victory" is "Democrats 8-10%" at 16%, meaning the market assigns a 16% chance to that outcome. The next closest outcome is "Democrats 6-8%" at 14%. These odds update in real-time as traders buy and sell shares, so they reflect the latest collective view of what's most likely to happen. Check back frequently or bookmark this page to follow how the odds shift as new information emerges.

The resolution rules for "2026 Midterms: House Popular Vote Margin of Victory" define exactly what needs to happen for each outcome to be declared a winner — including the official data sources used to determine the result. You can review the complete resolution criteria in the "Rules" section on this page above the comments. We recommend reading the rules carefully before trading, as they specify the precise conditions, edge cases, and sources that govern how this market is settled.