Forecast updates · Forecast as of Sep 7

Monday, September 7, 2026

Calls changed
4
Party changes
3
New polls
3
Compared with
Sep 6

Top line

The favored party's chance of a majority, and the change since Sep 6. Each dot is one update; hover for the day.

Senate

Chance of a Senate majority

D 68%no change

D50%RSep 1Sep 7

Expected seats 51.6 D · 48.4 R (0 D since Sep 6)

D 68%, 68% Democratic.

D 59%no change

D50%RSep 1Sep 7

Expected seats 51.1 D · 48.9 R (0 D since Sep 6)

D 59%, 59% Democratic.

House

Chance of a House majority

D 90%no change

D50%RSep 1Sep 7

Expected seats 231.6 D · 203.4 R (−0.1 D since Sep 6)

D 90%, 90% Democratic.

D 83%no change

D50%RSep 1Sep 7

Expected seats 231.7 D · 203.3 R (0 D since Sep 6)

D 83%, 83% Democratic.

Governors

Chance of a majority of governorships

D 65%no change

D50%RSep 1Sep 7

Expected seats 26.5 D · 23.5 R (0 D since Sep 6)

D 65%, 65% Democratic.

D 70%no change

D50%RSep 1Sep 7

Expected seats 27.0 D · 23.0 R (0 D since Sep 6)

D 70%, 70% Democratic.

Generic ballot (likely voters)

D+7.3no change

Forecast environment

D+7.5no change

Changes are in percentage points of the chance of a majority, labeled by the party they favor. Expected seats include seats not on the ballot. Horizon and Pulse.

Major changes

Senate and governor races, state legislative chambers and trifectas whose favored party or rating changed (Horizon).

No Senate or governor race, state legislative chamber or trifecta changed its rating or favored party since Sep 6.

Every call change

4 races changed rating or favored party since Sep 6 (Horizon). Ratings: Solid ≥ 95%, Likely ≥ 80%, Lean ≥ 60%, Toss-up below 60% for both sides.

House 1 change

  1. MT-1Likely R → Lean R

State legislatures 3 changes in 3 chambers

Minnesota State Senate · 1 change
  1. SD-32Now R favoredToss-up → Toss-up
Missouri House of Representatives · 1 change
  1. HD-89Now R favoredToss-up → Toss-up
New Hampshire House of Representatives · 1 change
  1. State House District Strafford 07Now D favoredToss-up → Toss-up

New polls

3 polls new since Sep 6, in 3 races. Shares as published; the forecast adjusts them before averaging.

New polls
RacePollsterDatesSampleResultMarginSource
U.S. Senate in MontanaRutgers-Eagleton for the Montana Free PressAug 27–Sep 7845 RVInd. 30 · R 38R+8montanafreepress.org ↗
Montana's 1st DistrictRutgers University Eagleton Institute of Politics for the Montana Free PressAug 27–Sep 7375 RVD 41 · R 42R+1montanafreepress.org ↗
Montana's 2nd DistrictRutgers University Eagleton Institute of Politics for the Montana Free PressAug 27–Sep 7470 RVD 26 · R 48R+22montanafreepress.org ↗

Fundraising

The FEC file this comparison needs was not archived for one of the two dates.

State legislative fundraising (New York's Board of Elections) refreshes weekly on race pages but is not compared day to day.

Candidates

No race changed its modeled candidates since Sep 6.