2026 Midterms: House Popular Vote Margin of Victory: how this market works

What you need to know

This market asks how wide the gap will be between Democrats and Republicans in the total national vote across all 2026 House of Representatives races. It is not about which party wins more seats, but about the raw vote count nationwide. A 'Yes' for any bracket means the final vote difference lands in that percentage range, regardless of which party comes out ahead. The market is currently focused on whether Democrats win the national popular vote by somewhere between 6 and 12 points. This settles based on the official vote totals published by the US Clerk of the House after the November 3, 2026 election. The margin is calculated by adding up every valid vote cast for Democratic House candidates across all 50 states, doing the same for Republicans, and finding the percentage-point difference between the two totals. Votes from US territories and Washington D.C. are excluded. If the margin lands exactly on a bracket boundary, it rounds up to the higher bracket. If the election does not happen by June 30, 2027, the market resolves as 'Other'. None of the provided news headlines are relevant to the 2026 House elections or the national popular vote margin. There is no recent polling, election news, or party strategy reporting to point to here. The kinds of developments worth watching for would be national approval ratings, economic conditions, candidate recruitment numbers, and any major policy events that shift voter sentiment before November 2026. The election is still more than a year away, which makes this genuinely hard to call. The national political environment can shift dramatically in that time due to economic changes, major policy decisions, or unexpected events. Midterm elections are also structurally complex: the party out of the White House often performs well, but local candidate quality and turnout patterns vary widely by district. The margin also depends on how many uncontested seats each party runs, since uncontested races can quietly shift the national vote share without reflecting actual voter sentiment.

The odds right now

• Democrats 8-10%+8.5 pts (1w)33%
• Democrats 10-12%+3.0 pts (1w)19%
• Democrats 6-8%17%
• Democrats 4-6%-1.0 pts (1w)11%
• Democrats 2-4%-1.3 pts (1w)7%
• Democrats 12-14%+0.1 pts (1w)6%
• Republicans 0-2%-0.3 pts (1w)4%
• Republicans 2-4%+0.1 pts (1w)3%
• Democrats 0-2%+0.2 pts (1w)2%
• Republicans 6%++0.1 pts (1w)1%
• Republicans 4-6%+0.1 pts (1w)1%
• Democrats 16%+-0.1 pts (1w)1%

Price history

How this resolves

Resolves November 3, 2026

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. Read the full resolution rules on the live market page.

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