Republicans hold a 53-47 Senate majority entering the 2026 midterms, so Democrats must secure a net gain of four seats for control. Nate Silver’s FLIPR model on the Silver Bulletin, which blends polling averages, fundamentals, and historical patterns, showed Democrats with roughly a 57% probability of taking the chamber as of late August. A Democratic generic ballot lead near six points, combined with President Trump’s approval near 38%, has created headwinds for the president’s party and improved Democratic positioning in key states including Texas, Ohio, Alaska, Iowa, Maine, and Michigan. Recent polling shifts have moved several of those contests into toss-up territory according to multiple forecasters. The model updates frequently through Election Day on November 3, leaving room for further movement based on new surveys, economic data, or campaign developments before any resolution dates.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedNEW
Nov 3, 2026
August 31
39%
September 15
39%
September 30
48%
October 31
51%
$0.00 Vol.
August 31
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39%
September 15
$0 Vol.
39%
September 30
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October 31
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This market will resolve to "Yes" if, at any point by the specified date at 11:59PM ET, the Silver Bulletin Flipr Forecast of the 2026 Senate election gives Republicans a greater than 50% chance to control the United States Senate. Otherwise, this market will resolve to "No". A 50.0% chance shall not be sufficient to resolve this market.
The resolution source will be Silver Bulletin's 2026 Flipr Forecast of Senate control, using the "Deluxe" version of the forecast, that can be found at https://www.natesilver.net/p/nate-silver-2026-midterm-election-polls-model.
Changes in the methodology by which Silver Bulletin calculates the forecast will have no bearing on the resolution of this market. If either Silver Bulletin or Flipr rebrand or otherwise change names or urls, this market will resolve based on the clearly-identified successor, should one exist. If Silver Bulletin's "Deluxe" Flipr model becomes permanently unavailable, the "Classic" model will be used.
Republicans hold a 53-47 Senate majority entering the 2026 midterms, so Democrats must secure a net gain of four seats for control. Nate Silver’s FLIPR model on the Silver Bulletin, which blends polling averages, fundamentals, and historical patterns, showed Democrats with roughly a 57% probability of taking the chamber as of late August. A Democratic generic ballot lead near six points, combined with President Trump’s approval near 38%, has created headwinds for the president’s party and improved Democratic positioning in key states including Texas, Ohio, Alaska, Iowa, Maine, and Michigan. Recent polling shifts have moved several of those contests into toss-up territory according to multiple forecasters. The model updates frequently through Election Day on November 3, leaving room for further movement based on new surveys, economic data, or campaign developments before any resolution dates.
This market will resolve to "Yes" if, at any point by the specified date at 11:59PM ET, the Silver Bulletin Flipr Forecast of the 2026 Senate election gives Republicans a greater than 50% chance to control the United States Senate. Otherwise, this market will resolve to "No". A 50.0% chance shall not be sufficient to resolve this market.
The resolution source will be Silver Bulletin's 2026 Flipr Forecast of Senate control, using the "Deluxe" version of the forecast, that can be found at https://www.natesilver.net/p/nate-silver-2026-midterm-election-polls-model.
Changes in the methodology by which Silver Bulletin calculates the forecast will have no bearing on the resolution of this market. If either Silver Bulletin or Flipr rebrand or otherwise change names or urls, this market will resolve based on the clearly-identified successor, should one exist. If Silver Bulletin's "Deluxe" Flipr model becomes permanently unavailable, the "Classic" model will be used.
The resolution source will be Silver Bulletin's 2026 Flipr Forecast of Senate control, using the "Deluxe" version of the forecast, that can be found at https://www.natesilver.net/p/nate-silver-2026-midterm-election-polls-model.
Changes in the methodology by which Silver Bulletin calculates the forecast will have no bearing on the resolution of this market. If either Silver Bulletin or Flipr rebrand or otherwise change names or urls, this market will resolve based on the clearly-identified successor, should one exist. If Silver Bulletin's "Deluxe" Flipr model becomes permanently unavailable, the "Classic" model will be used.
Market Opened: Aug 21, 2026, 4:26 PM ET
Volume
$0End Date
Nov 3, 2026Market Opened
Aug 21, 2026, 4:26 PM ETResolver
0x65070BE91...This market will resolve to "Yes" if, at any point by the specified date at 11:59PM ET, the Silver Bulletin Flipr Forecast of the 2026 Senate election gives Republicans a greater than 50% chance to control the United States Senate. Otherwise, this market will resolve to "No". A 50.0% chance shall not be sufficient to resolve this market.
The resolution source will be Silver Bulletin's 2026 Flipr Forecast of Senate control, using the "Deluxe" version of the forecast, that can be found at https://www.natesilver.net/p/nate-silver-2026-midterm-election-polls-model.
Changes in the methodology by which Silver Bulletin calculates the forecast will have no bearing on the resolution of this market. If either Silver Bulletin or Flipr rebrand or otherwise change names or urls, this market will resolve based on the clearly-identified successor, should one exist. If Silver Bulletin's "Deluxe" Flipr model becomes permanently unavailable, the "Classic" model will be used.
Republicans hold a 53-47 Senate majority entering the 2026 midterms, so Democrats must secure a net gain of four seats for control. Nate Silver’s FLIPR model on the Silver Bulletin, which blends polling averages, fundamentals, and historical patterns, showed Democrats with roughly a 57% probability of taking the chamber as of late August. A Democratic generic ballot lead near six points, combined with President Trump’s approval near 38%, has created headwinds for the president’s party and improved Democratic positioning in key states including Texas, Ohio, Alaska, Iowa, Maine, and Michigan. Recent polling shifts have moved several of those contests into toss-up territory according to multiple forecasters. The model updates frequently through Election Day on November 3, leaving room for further movement based on new surveys, economic data, or campaign developments before any resolution dates.
This market will resolve to "Yes" if, at any point by the specified date at 11:59PM ET, the Silver Bulletin Flipr Forecast of the 2026 Senate election gives Republicans a greater than 50% chance to control the United States Senate. Otherwise, this market will resolve to "No". A 50.0% chance shall not be sufficient to resolve this market.
The resolution source will be Silver Bulletin's 2026 Flipr Forecast of Senate control, using the "Deluxe" version of the forecast, that can be found at https://www.natesilver.net/p/nate-silver-2026-midterm-election-polls-model.
Changes in the methodology by which Silver Bulletin calculates the forecast will have no bearing on the resolution of this market. If either Silver Bulletin or Flipr rebrand or otherwise change names or urls, this market will resolve based on the clearly-identified successor, should one exist. If Silver Bulletin's "Deluxe" Flipr model becomes permanently unavailable, the "Classic" model will be used.
The resolution source will be Silver Bulletin's 2026 Flipr Forecast of Senate control, using the "Deluxe" version of the forecast, that can be found at https://www.natesilver.net/p/nate-silver-2026-midterm-election-polls-model.
Changes in the methodology by which Silver Bulletin calculates the forecast will have no bearing on the resolution of this market. If either Silver Bulletin or Flipr rebrand or otherwise change names or urls, this market will resolve based on the clearly-identified successor, should one exist. If Silver Bulletin's "Deluxe" Flipr model becomes permanently unavailable, the "Classic" model will be used.
Volume
$0End Date
Nov 3, 2026Market Opened
Aug 21, 2026, 4:26 PM ETResolver
0x65070BE91...Republicans hold a 53-47 Senate majority entering the 2026 midterms, so Democrats must secure a net gain of four seats for control. Nate Silver’s FLIPR model on the Silver Bulletin, which blends polling averages, fundamentals, and historical patterns, showed Democrats with roughly a 57% probability of taking the chamber as of late August. A Democratic generic ballot lead near six points, combined with President Trump’s approval near 38%, has created headwinds for the president’s party and improved Democratic positioning in key states including Texas, Ohio, Alaska, Iowa, Maine, and Michigan. Recent polling shifts have moved several of those contests into toss-up territory according to multiple forecasters. The model updates frequently through Election Day on November 3, leaving room for further movement based on new surveys, economic data, or campaign developments before any resolution dates.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
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