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Races · Senate · 2020 · Wyoming
Senate · class II · open seat

Merav Ben-David vs Cynthia Lummis

Safe RR +46.8 forecast· 1 polls · 0 markets
Model's final pre-election call · win probabilitypoliagg-v34 · final pre-election call
1% Ben-David (D)
99% Lummis (R)
R+15R+5TIEDD+5D+15
Model's predicted final margin R +46.8 · 80% CI R+58.8 → R+34.8
Actual result R+46.1 · 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

Safe R · model 99% R

No recent polls or markets for this race. PVI baseline (R+25) suggests Safe R.

The poliagg-v34 ensemble forecasts R+46.8 with an 80% CI ranging from R+58.8 (10th pctile) to R+34.8 (90th pctile), giving R a 99% chance of winning.

CITATIONS · safe-r
Forecast · poliagg-v34
Predicted final margin
R +46.8
80% CI: R +58.8R +34.8 · win prob 1%
R+60R+30TIEDD+30D+60
Quality · inputs
Data quality · medium
Polls used1
Days to electionpassed
Actual resultR+46.1
Residual σ6.00pt
Generated7/1/2026

Polling average

2530354045505560LUMMIS 56.0BEN-DAVID 26.0OCT '20OCT '20OCT '20
Weighted, plus each pollster's measured bias subtracted before averaging.

All polls · 1 results

strongpositiveinfocautionflag
DatePollster · trust signalsn · popLeanBias · trackvs ratersD · R
Oct 27University of Wyoming614 · LVNEUTRAL26 · 56

Endorsements · 24 total

Source · Wikipedia · 0 candidates with no endorsements yet
6Ben-David · 25%
Lummis · 75%18
RCynthia Lummis18 endorsers
Most notable · Bill Cassidy · U.S. senator (LA)
Elected officials10
Federal 9State 0Local 0
Other8
DMerav Ben-David6 endorsers
Most notable · Pete Muldoon · Mayor of Jackson, Wyoming
Other5
Elected officials1
Federal 0State 0Local 1

Money raised · own committees

FEC Schedule E (independent expenditures) + candidate-committee totals · last filing 2020-12-17
Cynthia LummisS0WY00137 ↗
Receipts
$3.0M
Disburse
$3.0M
Cash on hand
$114.5K
Debts
$156.6K
Health professionals$5.6K
NA$111.5K
GABY FOUNDATION$11.2K
THE SINCLAIR COMPANIES$11.2K
INVARIANT$8.3K
CROEL REDI MIX$7.7K
Merav Ben-DavidS0WY00152 ↗
Receipts
$559.6K
Disburse
$545.3K
Cash on hand
$14.3K
Debts
$3.8K
Education$8.8K
Health professionals$1.5K
Govt employees$1.4K
Internet$1.2K
WESTERN ECOSYSTEMS TECHNOLOGY INC.$5.0K
PATAGONIA$5.0K
MIT$4.5K
UNIVERSITY OF WYOMING$4.4K
ACCORD$2.8K

Outside spending · independent expenditures

FEC Schedule E (independent expenditures) + candidate-committee totals · 24/48-hr IE reports
IE total
$2.8M
D side
$10 · 0%
R side
$2.8M · 100%
Top spender
SENATE CONSERVATIVE…
For / against split
For Ben-David $10
Against Ben-David $132
For Lummis $2.8M
SpenderSideAmountShareTarget
SENATE CONSERVATIVES FUNDR$2.3M81%for Cynthia Lummis
SENATE CONSERVATIVES ACTIONR$524.2K18%for Cynthia Lummis
NATIONAL RIFLE ASSOCIATION OF AMERICA POLITICAL VICTORY FUNDR$6.5K0%for Cynthia Lummis
NATIONAL ASSOCIATION FOR GUN RIGHTS INC PACR$6600%for Cynthia Lummis
SIERRA CLUB INDEPENDENT ACTIOND$100%for Merav Ben-David

Editorial ratings · 5 raters

Cook · Sabato · Inside Elections · 538 · DDHQ et al.
Safe R5
The Cook Political Report
Safe R
Oct 28
DDHQ
Safe R
Nov 2
538
Safe R
Nov 1
Inside Elections
Safe R
Oct 27
Sabato's Crystal Ball
Safe R
Nov 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 Rmodel
Verification trail
Polls verified1 / 1deterministic
Polls flaggednone
Markets ingested0 platformsnone listed
FEC filingssyncedcommittee + IE · 2020-12-17
Endorsements24 totalWikipedia scrape
News coverage< 5 articlesGoogle News
Method · bounds + percentage totals + date-order checks