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Races · house · 2020 · Connecticut
house · open seat

John B. Larson vs Mary Fay

Safe DD +38.1 forecast· 0 polls · 0 markets
Model's final pre-election call · win probabilitypoliagg-v34 · final pre-election call
99% Larson (D)
1% Fay (R)
R+15R+5TIEDD+5D+15
Model's predicted final margin D +38.1 · 80% CI D+26.1 → D+50.1
Actual result D+26.0 · backtest (race already called)
Momentum
insufficient data
Tipping-point P
0.0%
Decisive for chamber control
Market · D-side
Cross-platform consensus
News articles · 30d
no recent coverage
Where this race stands
Verified

Likely D · model 99% D

No recent polls or markets for this race. PVI baseline (D+12) suggests Likely D.

The poliagg-v34 ensemble forecasts D+38.1 with an 80% CI ranging from D+26.1 (10th pctile) to D+50.1 (90th pctile), giving D a 99% chance of winning.

CITATIONS · likely-d
Forecast · poliagg-v34
Predicted final margin
D +38.1
80% CI: D +26.1D +50.1 · win prob 99%
R+60R+30TIEDD+30D+60
Quality · inputs
Data quality · medium
Polls used0
Days to electionpassed
Actual resultD+26.0
Residual σ6.00pt
Generated7/1/2026

Endorsements · 7 total

Source · Wikipedia · 2 candidates with no endorsements yet
7Larson · 100%
DJohn B. Larson7 endorsers
Most notable · Barack Obama · former president of the United States (2009–2017)
Other5
Elected officials1
Federal 1State 0Local 0
Organizations1
RMary Fay0 endorsers
no endorsers yet
No endorsements found yet. Endorsements come from the candidate's Wikipedia article (when one exists) and update with the daily scrape.
GTom McCormick0 endorsers
no endorsers yet
No endorsements found yet. Endorsements come from the candidate's Wikipedia article (when one exists) and update with the daily scrape.

Money raised · own committees

FEC Schedule E (independent expenditures) + candidate-committee totals · last filing 2020-11-20
John B. LarsonH8CT01046 ↗
Receipts
$1.4M
Disburse
$1.3M
Cash on hand
$422.4K
Debts
$12.0K
Lawyers / law firms$7.0K
Education$5.5K
Air transport$5.5K
LAW OFF. FREDERICK H. GRAEFE$7.0K
GOODWIN COLLEGE$5.5K
AIRLINES FOR AMERICA$5.5K
MAJARS SOURCING, INC.$5.1K
HOFFMAN ENTERPRISES$4.8K
Receipts
$26.8K
Disburse
$25.1K
Cash on hand
$1.7K
Debts
$0
No industry data.
CHASE ENTERPRISES$2.8K
MCMAHON VENTURES$2.8K
KERIVAN-LANE$1.5K
ROIVANT SCIENCES, INC$1.0K
CARRIER GROUP INC$500

Outside spending · independent expenditures

FEC Schedule E (independent expenditures) + candidate-committee totals · 24/48-hr IE reports
IE total
$240.1
D side
$240.1 · 100%
R side
$0 · 0%
Top spender
PLANNED PARENTHOOD …
For / against split
For Larson $125.05
Against Fay $115.05
SpenderSideAmountShareTarget
PLANNED PARENTHOOD VOTESD$230.196%for John B. Larson
SIERRA CLUB INDEPENDENT ACTIOND$104%for John B. Larson

Editorial ratings · 3 raters

Cook · Sabato · Inside Elections · 538 · DDHQ et al.
Safe D3
The Cook Political Report
Safe D
Jul 1
Inside Elections
Safe D
Jun 1
Sabato's Crystal Ball
Safe D
Jul 1

Demographic crosstabs

age · education · race · gender
No demographic crosstabs published for this race yet. Most pollsters release only topline numbers; subgroup breakdowns (age, education, race, gender) appear here when a pollster publishes them.
Rating timeline
May 11, 2026Safe Dmodel
Verification trail
Polls verified0 / 0deterministic
Polls flaggednone
Markets ingested0 platformsnone listed
FEC filingssyncedcommittee + IE · 2020-11-20
Endorsements7 totalWikipedia scrape
News coverage< 5 articlesGoogle News
Method · bounds + percentage totals + date-order checks