Horizon · our Election Day forecast: polls, plus fundamentals like incumbency, fundraising and past results.

Pulse · polls only: where the races stand today, with no fundamentals and wider uncertainty.

What's the difference?

Vermont · 2026 forecast · Updated Oct 16, 2026

Who will control the Vermont State Senate?

All 30 seats are on the ballot. 16 seats make a majority. The lieutenant governor breaks ties. 20 make the two-thirds supermajority that can override a veto.

Democrats are very likely to control the Vermont State Senate (>99%).

Democrats
>99%
chance of control
Republicans
<1%
Avg. D seats
23.080% range 22–24
Avg. R seats
7.080% range 6–8
Now
17 D · 13 R30 up this year

Chance Democrats win a two-thirds supermajority (20+ seats): >99%

17 D nowMarks: two-thirds supermajority for each party13 R now

Tie: The lieutenant governor breaks ties.

Democrats are very likely to control the Vermont State Senate (>99%).

Democrats
>99%
chance of control
Republicans
<1%
Avg. D seats
22.780% range 22–24
Avg. R seats
7.380% range 6–8
Now
17 D · 13 R30 up this year

Chance Democrats win a two-thirds supermajority (20+ seats): >99%

17 D nowMarks: two-thirds supermajority for each party13 R now

Tie: The lieutenant governor breaks ties.

16 for control
16 for control
  • Solid D
  • Likely D
  • Lean D
  • Toss-up
  • Lean R
  • Likely R
  • Solid R

Race ratings

All 16 races, grouped by the leader's chance of winning.

4 seats projected to flip: 4 R→D. 1 more is a toss-up that could change parties (flip risk).

4 seats projected to flip: 4 R→D. 1 more is a toss-up that could change parties (flip risk).

Columns follow the chance of winning: Toss-up 40–60%, Lean 60–80%, Likely 80–95%, Solid 95%+. The square shows who holds the seat now (■ Democrats, ■ Republicans). flip: projected to change parties, in the color of the party favored to gain it. risk: a toss-up (40–60%) that could change parties. Underlined: two candidates of one party in November. Faded: no major-party opponent.

The map

Each district colored by the leader's chance of winning. Hover for details; click for the race.

Vermont

Burlington

  • Solid D
  • Likely D
  • Lean D
  • Toss-up
  • Lean R
  • Likely R
  • Solid R
  • Projected flip (stripes: party holding it now)

Seats to watch

The closest races (Lean or Toss-up, Horizon), and the seats most likely to change parties.

How this chamber is elected

Rules that shape these races and the forecast.

Named multi-member districts

Districts are named after counties and towns ('Chittenden-Central'). Senate districts elect one to three senators and House districts one or two members; voters pick as many as there are seats.

Progressive Party

Vermont's Progressive Party holds legislative seats and caucuses with the Democrats, so its candidates are forecast on the Democratic side and its seats count toward that majority.

Fusion voting

Candidates can run with several party nominations, often Democratic and Progressive (listed as 'Democratic/Progressive'), and their votes count together. The forecast uses the first-listed party.

How the odds have moved

Chance of winning control, by forecast date.

0%25%50%75%100%AugSepOctNovNov 3Democrats >99%Republicans <1%

Updated nightly. Each day is the current model run on the polls that had ended by then (how).

0%25%50%75%100%AugSepOctNovNov 3Democrats >99%Republicans <1%

Updated nightly. Each day is the current model run on the polls that had ended by then (how).

Every outcome we simulated

Democratic seats across 40,000 simulations. Darker bars: the middle 80%.

16 for D control →D two-thirds →1618202224
16 for D control →D two-thirds →1618202224

Every race

16 races, 4 without a contest between the major parties.

16 races
DistrictCandidatesChance of winning (D · R)Avg. marginRatingLeanPolls
Addison Senatorial2 seats
● Ruth HardyINC● Steven HeffernanAlso: Hannah Sessions (D), Andrew Klein (R)
>99%<1%
>99%<1%
D+32.5D+36.0Solid DSolid DD+39—
Bennington Senatorial2 seats
● Seth BongartzINC● Lawrence WhitmireAlso: Rob Plunkett (D), Josh Williams (R), Rachel Shaw (PRG)
>99%<1%
99%1%
D+26.5D+24.4Solid DSolid DD+25—
Caledonia SenatorialD flipD flip
● David Roth● Scott BeckINC
88%12%
96%4%
D+9.9D+17.2Likely DSolid DD+17—
Chittenden Central Senatorial3 seats
● Martine GulickINC● Louie MannoAlso: Nikhil Goyal (D), Tanya Vyhovsky (PRG)
>99%<1%
>99%<1%
D+68.7D+76.7Solid DSolid DD+73—
Chittenden North SenatorialD flipD flip
● Irene Wrenner● Ashley Bartley
97%3%
97%3%
D+15.4D+19.9Solid DSolid DD+17—
Chittenden South East Senatorial3 seats
● Thomas ChittendenINC● Bruce RoyAlso: Kesha Ram Hinsdale (D), Javen Sears (R), Rohan St. Marthe (R)
>99%<1%
>99%<1%
D+55.3D+61.6Solid DSolid DD+60—
Essex Senatorial
● No Democrat● Russ IngallsINC
Republican unopposedRepublican unopposed—Uncontested RUncontested RR+8—
Franklin SenatorialFlip riskFlip risk2 seats
● Alexander Bobella● Randy BrockINCAlso: Robert Norris (R), A. Gregory Rainville (D)
59%41%
44%56%
D+1.6R+1.5Toss-upToss-upR+4—
Grand Isle SenatorialD flipD flip
● Kim Gleason● Patrick BrennanINC
>99%<1%
>99%<1%
D+25.6D+36.8Solid DSolid DD+36—
Lamoille Senatorial
● No Democrat● Richard WestmanINC
Republican unopposedRepublican unopposed—Uncontested RUncontested RD+31—
Orange SenatorialD flipD flip
● Monique Priestley● John BensonINC
98%2%
97%3%
D+17.1D+19.6Solid DSolid DD+20—
Orleans Senatorial
● No Democrat● John MorleyINC
Republican unopposedRepublican unopposed—Uncontested RUncontested RD+5—
Rutland SenatorialR vs R3 seats
● No Democrat● Brian CollamoreINCAlso: Dave Weeks (R), Terry Williams (R), Dave Wolk (I)
Republicans only in NovemberRepublicans only in November—Solid R (R vs R)Solid R (R vs R)D+3—
Washington Senatorial3 seats
● Ann CummingsINC● Robert LaClairAlso: Andrew Perchlik (D), Anne Watson (D), Christopher Neddo (R)
>99%<1%
>99%<1%
D+44.5D+47.5Solid DSolid DD+51—
Windham Senatorial2 seats
● Wendy HarrisonINC● Dale GassettAlso: Nader Hashim (D), Rusty Sage (R)
>99%<1%
>99%<1%
D+45.9D+43.7Solid DSolid DD+47—
Windsor Senatorial3 seats
● Joe MajorINC● Jonathan GleasonAlso: Elizabeth Burrows (D), Rebecca White (D), Andrea Murray (R)
>99%<1%
>99%<1%
D+38.8D+35.7Solid DSolid DD+38—

Lean: how much more Democratic (D+) or Republican (R+) the place voted for president than the nation (2024 weighted 75%, 2020 25%). Ratings follow the chance of winning: Toss-up 40–60%, Lean 60–80%, Likely 80–95%, Solid 95%+. INC = incumbent running. D flip / R flip: another party is favored (60% or more) over the party holding the seat now (hover for the chance it changes parties); Flip risk: the seat is a toss-up (40–60%). Badges mark election rules (hover or long-press for details): RCV = ranked-choice voting; Top two / Top four = the leading primary finishers advance; All-party = every candidate on one November ballot; TBD = no candidate list yet, forecast for the seat's party against a generic challenger.