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Races · house · 2020 · Illinois
house · open seat

Bill Foster vs Rick Laib

Safe DD +29.2 forecast· 0 polls · 0 markets
Model's final pre-election call · win probabilitypoliagg-v34 · final pre-election call
99% Foster (D)
1% Laib (R)
R+15R+5TIEDD+5D+15
Model's predicted final margin D +29.2 · 80% CI D+17.2 → D+41.2
Actual result D+26.6 · 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

Lean D · model 99% D

No recent polls or markets for this race. PVI baseline (D+6) suggests Lean D.

The poliagg-v34 ensemble forecasts D+29.2 with an 80% CI ranging from D+17.2 (10th pctile) to D+41.2 (90th pctile), giving D a 99% chance of winning.

CITATIONS · lean-d
Forecast · poliagg-v34
Predicted final margin
D +29.2
80% CI: D +17.2D +41.2 · win prob 99%
R+45R+23TIEDD+23D+45
Quality · inputs
Data quality · medium
Polls used0
Days to electionpassed
Actual resultD+26.6
Residual σ6.00pt
Generated7/1/2026

Endorsements · 118 total

Source · Wikipedia · 0 candidates with no endorsements yet
93Foster · 79%
Laib · 21%25
DBill Foster93 endorsers
Most notable · Barack Obama · 44th president of the United States
Other43
Elected officials27
Federal 13State 6Local 0
Organizations19
Newspapers3
Celebrity1
RRick Laib25 endorsers
Most notable · Donald Trump · 45th president of the United States
Other10
Elected officials7
Federal 7State 0Local 0
Organizations6
Newspapers2

Money raised · own committees

FEC Schedule E (independent expenditures) + candidate-committee totals · last filing 2020-11-20
Bill FosterH8IL14067 ↗
Receipts
$2.4M
Disburse
$1.9M
Cash on hand
$3.7M
Debts
$1.0M
Education$71.9K
FERMILAB$18.0K
COLUMBIA UNIVERSITY$17.2K
UNIVERSITY OF CHICAGO$14.3K
BOSTON UNIVERSITY$11.0K
HARVARD UNIVERSITY$10.7K
Rick LaibH0IL11110 ↗
Receipts
$20.9K
Disburse
$20.1K
Cash on hand
$867.55
Debts
$1.5K
Education$495.9
ATTEMPTED$1.3K
EMPORIO$1.0K
BREW IN BAG SUPPLIES$500
PLAINFIELD$500
ATTEMPTED TO OBTAIN$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 Foster $125.05
Against Laib $115.05
SpenderSideAmountShareTarget
PLANNED PARENTHOOD VOTESD$230.196%for Bill Foster
SIERRA CLUB INDEPENDENT ACTIOND$104%for Bill Foster

Editorial ratings · 3 raters

Cook · Sabato · Inside Elections · 538 · DDHQ et al.
Safe D3
The Cook Political Report
Safe D
Oct 20
Inside Elections
Safe D
Oct 15
Sabato's Crystal Ball
Safe D
Oct 19

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
Endorsements118 totalWikipedia scrape
News coverage< 5 articlesGoogle News
Method · bounds + percentage totals + date-order checks