NonpartisanIndependent, data-first coverage of US elections — polls, forecasts, and prediction markets, refreshed daily.Updated daily.What's new·Methodology·Send feedback
Races · Senate · 2022 · Maryland
Senate · class III · open seat

Chris Van Hollen vs Chris Chaffee

Safe DD +27.7 forecast· 2 polls · 0 markets
Model's final pre-election call · win probabilitypoliagg-v34 · final pre-election call
99% Hollen (D)
1% Chaffee (R)
R+15R+5TIEDD+5D+15
Model's predicted final margin D +27.7 · 80% CI D+15.7 → D+39.7
Actual result D+31.7 · 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+14) suggests Likely D.

The poliagg-v34 ensemble forecasts D+27.7 with an 80% CI ranging from D+15.7 (10th pctile) to D+39.7 (90th pctile), giving D a 99% chance of winning.

CITATIONS · likely-d
Forecast · poliagg-v34
Predicted final margin
D +27.7
80% CI: D +15.7D +39.7 · win prob 99%
R+45R+23TIEDD+23D+45
Quality · inputs
Data quality · medium
Polls used2
Days to electionpassed
Actual resultD+31.7
Residual σ6.00pt
Generated7/1/2026

Polling average

30354045505560HOLLEN 56.0CHAFFEE 33.0SEP '22SEP '22SEP '22
Weighted, plus each pollster's measured bias subtracted before averaging.

All polls · 2 results

strongpositiveinfocautionflag
DatePollster · trust signalsn · popLeanBias · trackvs ratersD · R
Sep 11Goucher College748 · LVNEUTRAL56 · 33
Sep 9Goucher College Sarah T. Hughes Center for Politics748 · unknownNEUTRAL56 · 33

Endorsements · 26 total

Source · Wikipedia · 1 candidate with no endorsements yet
26Hollen · 100%
DChris Van Hollen26 endorsers
Most notable · AFL–CIO · d State and District of Columbia AFL–CIO
Organizations18
Other8
RChris Chaffee0 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 2022-12-29
Chris Van HollenS6MD03441 ↗
Receipts
$6.6M
Disburse
$5.7M
Cash on hand
$2.2M
Debts
$2.2K
Lawyers / law firms$23.7K
Health professionals$15.4K
LEIDOS$28.8K
PARRY LABS$17.4K
WILMERHALE$17.3K
THEGROUP$16.5K
HOLLAND & KNIGHT$15.8K

Outside spending · independent expenditures

FEC Schedule E (independent expenditures) + candidate-committee totals · 24/48-hr IE reports
IE total
$66.1K
D side
$66.1K · 100%
R side
$0 · 0%
Top spender
UNITED WOMEN'S HEAL…
For / against split
For Hollen $66.1K
SpenderSideAmountShareTarget
UNITED WOMEN'S HEALTH ALLIANCE PACD$63.7K96%for Chris Van Hollen
NEA ADVOCACY FUNDD$1.9K3%for Chris Van Hollen
CHESAPEAKE CLIMATE ACTION NETWORK ACTION FUNDD$504.891%for Chris Van Hollen
SIERRA CLUB INDEPENDENT ACTIOND$100%for Chris Van Hollen

Editorial ratings · 6 raters

Cook · Sabato · Inside Elections · 538 · DDHQ et al.
Safe D6
The Cook Political Report
Safe D
Mar 3
DDHQ
Safe D
Jul 19
The Economist
Safe D
Sep 6
538
Safe D
Jun 29
Inside Elections
Safe D
Jun 30
Sabato's Crystal Ball
Safe D
Jun 14

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 verified1 / 2deterministic
Polls flaggednone
Markets ingested0 platformsnone listed
FEC filingssyncedcommittee + IE · 2022-12-29
Endorsements26 totalWikipedia scrape
News coverage< 5 articlesGoogle News
Method · bounds + percentage totals + date-order checks