Who Will Control Congress After the 2026 Midterms? Polls and Latest News

Resolved Nov 11, 2026

Balance of Power: 2026 Midterms

This market settled on November 11, 2026, so nothing below is tradeable. These are the last prices each venue published before settlement, not live quotes.

Compare every venueClosing prices, not an entry point

Consensus prediction market price

Since the first article's chart, October 28 to November 11

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Background

The 2026 midterm elections on Nov. 3, 2026 decide control of both chambers of Congress, and the Balance of Power market asks whether Democrats win the House and the Senate together. Republicans hold the Senate 53-47, so Democrats need a net gain of four seats there, while the House bar is lower at a net gain of three or four seats depending on the source. About 10 Senate races are considered competitive, with CBS News listing Maine, Michigan, Ohio, Texas and Alaska as toss-ups.

The rule that matters most is that the Democrats Sweep contract pays only if both chambers flip, so the Senate is the binding constraint. A strong national environment helps the House far more than the Senate, where outcomes depend on individual state races. The contract is scheduled to resolve by Nov. 17, 2026, and slow counts or legal challenges could delay a call.

Public polls, newest first. Bases differ, so compare like with like.
Poll	Fieldwork	Base	Democrats	Republicans
Reuters/Ipsos	Oct. 30-Nov. 2	Registered voters	46%	38%
Emerson College	Oct. 30	Generic ballot	52%	42%

Nov. 4, 2026: Democrats' Odds of Winning House and Senate Hit 86% Despite Polls

Democrats have an 86% chance of winning both the House and Senate in the Balance of Power: 2026 Midterms market on Nov. 3, 2026, with final national polls still showing them ahead on the generic ballot: Reuters/Ipsos at D+8 and Focaldata-FT at D+7.4 among likely voters. The Senate is the harder half. Republicans hold a 53-47 majority, so Democrats need a net gain of four seats, with about 10 races considered competitive.

Democrats Sweep Market Hits Record 86% on Election Day for the 2026 Midterms

The Democrats Sweep contract, which pays out only if Democrats control both chambers, rose from 71% to 86% over the three days ending Nov. 3, a gain of roughly 15 points. That is the highest price this contract has traded, up about 16 points from its period low of 70%, a level Kalshi News had flagged as a record only days earlier. Venues sit close together: Kalshi at 86%, Polymarket at 88% and PredictIt at 84%, a 4-point spread.

Election Day coverage framed Democrats as favorites for a sweep, according to Quartz and The Independent. Democrats need a net gain of four House seats for a majority, a lower bar given the national environment.

Why the Democrats Sweep Rally Faces a Polling Counter-Case

The market climbed while its main input softened. The final Reuters/Ipsos poll, released Monday, Nov. 2, showed Democrats leading 46-38 among registered voters, down from an 11-point edge a week earlier, according to The Hill. The same survey put President Trump's approval at 32%, and its likely-voter result was 52-44 Democratic. Focaldata-FT's final poll, fielded Oct. 30 to Nov. 1, showed a 7.4-point Democratic lead among likely voters.

Skeptics pushed back on the confidence, and MarketWatch suggested markets may be showing too much confidence. The structural risk sits in the Senate: a national generic-ballot lead does not convert seat-for-seat. Democrats must flip a net four seats from a map of roughly 10 competitive contests, many in states Trump carried, as NBC News reported.

When Will We Know Who Controls Congress After the 2026 Midterms?

Polls began closing on the night of Nov. 3, per Reuters, but AP warned that calling control of Congress "could be a while." The Los Angeles Times noted that states such as California may take weeks to certify results and that the Trump administration has plans to challenge outcomes. On Nov. 2, the Supreme Court denied a Justice Department bid to segregate about 20,000 California ballots.

The confirming or reversing evidence is the Senate tally against the four-seat threshold. Live pricing for each outcome sits on the 2026 balance of power market page, and the contract is scheduled to resolve by Nov. 17, 2026.

Earlier Updates

Oct. 31, 2026: Democrats' Odds of Winning Both House and Senate in 2026 Hit 71%

Democrats Sweep64% → 71%▲7

On Oct. 31, Democrats' odds of winning both the House and Senate in 2026 rose to 71%, up from 64% three days earlier, as a cluster of Oct. 29-30 polls showed them leading nationally and in key Senate races. Emerson's generic ballot put Democrats ahead 52-42, while CNN polls had Abdul El-Sayed up 7 points in Michigan and James Talarico up 6 in Texas. Sources link the polls and the price move over the same window but do not tie the move to any single release.