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US Midterms 2026
17OCT

Cook moves six seats, all one way

3 min read
17:30UTC

Cook Political Report changed six House ratings on Thursday 3 September and moved every one toward the Democrats. Silver Bulletin's new FLIPR model, launched on Tuesday 11 August, then moved on a court order rather than a poll.

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Key takeaway

Cook shifted six House seats toward Democrats with no move in the other direction.

Cook Political Report published six House rating changes on Thursday 3 September and moved every one of them toward the Democrats.⁠1 Michigan's 10th and Florida's 14th went to Toss Up. Ohio's 15th and 10th and Colorado's 3rd fell from Solid Republican to Likely Republican, and Michigan's 8th rose from Lean Democratic to Likely Democratic. Nothing moved the other way. Cook rates every House district on a seven-point scale and revises in batches, so a batch with no counter-move is the part worth noticing.

Florida's 14th repays a second look. Kathy Castor is the sitting Democrat there, yet the seat was rated Lean Republican, because a rating describes the district and Florida's 24R-4D map pushed hers rightward. A long-serving Democrat in a Republican-leaning seat now sits in a toss-up. The batch follows a summer in which Sabato's Crystal Ball moved three governor's races in July and the president's approval reached the worst reading of either of his terms.

Silver Bulletin launched its 2026 forecast model on Tuesday 11 August. Forecast with Leading Indicators, Polls and Expert Ratings (FLIPR) runs 40,000 simulations per update and forecasts House, Senate and gubernatorial races jointly, so it can price a Republican Senate alongside a Democratic House rather than treating the two as separate bets.⁠2

Its numbers moved after the Missouri ruling. FLIPR's estimate of Democrats winning House control went from about 81 per cent to about 83, and its average simulated Democratic seat count from 230 to 231. Its estimate of Emanuel Cleaver holding Missouri's 5th District went from 25 per cent to 98.⁠3 A court order rather than an opinion shift produced that jump, so it says nothing about what voters think. Silver Bulletin publishes these as one model's outputs, not as a statement about what happens on 3 November.

Deep Analysis

In plain English

Two different ways of tracking which party is likely to win the House both moved toward the Democrats this week. Cook Political Report, which uses expert judgment, shifted six individual House races in the Democrats' favour and none the other way. Separately, a statistical model called FLIPR, which runs tens of thousands of simulations, jumped its Democratic control estimate from about 81 to 83 per cent, and its estimate that Missouri Congressman Emanuel Cleaver keeps his seat leapt from about 25 to 98 per cent after Missouri's court ruling on the map.

Deep Analysis
Root Causes

The scale of Cleaver's swing traces directly to Missouri's Supreme Court ruling suspending HB 1: the district's competitiveness depends entirely on which map is used, and a simulation model updates that input instantly, while a qualitative service like Cook adjusts ratings on its own review cycle.

That difference in update mechanism, not disagreement over direction, explains why the two outlets' reactions differ so much in size.

What could happen next?
  • Meaning

    Missouri's court ruling had an immediate, quantifiable effect on a single House race's national forecast, showing how much one state's redistricting fight can move overall control estimates.

  • Risk

    If Missouri's map fight reverses again, through the pending SCOTUS stay or the November referendum, FLIPR's Cleaver estimate has no fundamental basis to hold at 98 per cent.

Sources:Cook Political Report·Silver Bulletin·Silver Bulletin
Mentions:Nate Silver's Silver Bulletin →Missouri →Cook Political Report →Kathy Castor →Florida →Michigan →Pennsylvania →Sabato's Crystal Ball →Colorado →
First Reported In

Update #16 · Missouri suspends its map, and votes on it

Cook Political Report· 7 Sept 2026
Read original →
Causes and effects
Caused by
Missouri map suspended, sent to voters
The Missouri map suspension is what moved FLIPR's House and Missouri-5th estimates.
Occurred 3 Sept 2026
Read story →
Cook moves seven seats, none back
Cook's 3 September moves follow its own 18 June ratings round, extending the same series of Democratic-direction changes.
Occurred 18 Jun 2026
Read story →
This Event
Cook moves six seats, all one way
Six independently rated races shifted in one direction with nothing moving back, which is a stronger signal than any single survey.
Different Perspectives
James Talarico's campaign
James Talarico's campaign
Talarico's campaign reported raising $56.34m in the quarter to Ken Paxton's $10.17m, and says he has been off the trail since 30 September with flu. Texas PAC, whose only donor is SLF, has spent $131.5m in the race, more than twice what the campaign spent.
Senate Majority PAC, spokesperson Lauren French
Senate Majority PAC, spokesperson Lauren French
French said on 8 October that the Democratic super PAC was watching Kansas closely, but its booked airtime covers nine states and Kansas is not one. Whether SMP spends there decides if Adam Hamilton's 13-to-1 fundraising edge meets outside Republican money alone.
Brad Raffensperger, Georgia Secretary of State
Brad Raffensperger, Georgia Secretary of State
Raffensperger's office reported 188,667 in-person votes on the first day of early voting, a midterm record. He expects turnout to challenge 2022's near 4m.
Sam Hayes, North Carolina State Board of Elections
Sam Hayes, North Carolina State Board of Elections
Hayes's board reported 1,392 SAVE flags, about 0.02% of the roll, and says no voter will be removed automatically. The board is asking flagged voters to cancel or prove citizenship by letter, while eligible voters keep the right to vote on 3 November.
Senate Majority Leader John Thune
Senate Majority Leader John Thune
Thune, the Senate's Republican leader, said the government-paid ads should not be funded by taxpayers. His objection puts the party's own Senate leadership against the administration on the DHS spending.
The White House and Donald Trump
The White House and Donald Trump
The White House calls the five DHS ads public-service announcements with no call to action; Trump called them "rather standard", then said his political fundraising would pay. A White House official said there are no immediate plans to repay.

Written with AI from Lowdown's published reporting. Not individually reviewed by an editor. Editorial standards.