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U.S. House · All Nevada races

Nevada District 3

Solid D
Compare
Susie Lee
Democratic · incumbent
99 in 100
50–50chance of winning, out of 100
Martin O'Donnell
Republican
1 in 100

Susie Lee wins in 99 of 100 simulations.

There are no qualifying public polls yet, so the forecast leans on fundamentals; partisan lean, the national environment and incumbency point to Susie Lee +14.6.

Where the result could land

Every simulated outcome, grouped in 2-point steps. Projected margin Lee +14.6; 80 in 100 fall between Lee +7.3 and Lee +21.9.

O'Donnell +30O'Donnell +20O'Donnell +10Lee +10Lee +20Lee +30Tie

The candidates

Susie LeeIncumbent
Democratic · American politician (born 1966)

Suzanne Marie Lee is an American politician who has served as the U.S. representative for Nevada's 3rd congressional district since 2019. A member of the Democratic Party, she represents southern Las Vegas and much of unincorporated Clark County. Wikipedia

Raised
$5.6M
Cash on hand
$1.3M
Through 2026-09-30
Official website ↗
Martin O'Donnell
Republican · American video game composer (born 1955)

Martin O'Donnell is an American composer, audio director, and sound designer best known for his work on video game developer Bungie's titles, including the Myth series, Oni, the Halo series, and Destiny. Wikipedia

Raised
$4.5M
Cash on hand
$445K
Through 2026-09-30
Jon Kamerath
Independent American

Ballot list and short bios from Wikipedia (CC BY-SA); websites from Wikidata; fundraising from the FEC (cycle-to-date, latest report).

What if this race flips? Try it in the map builder →

Polls

No public polls have tested Susie Lee against Martin O'Donnell yet.

No polls of this matchup yet, so there is no polling average. The forecast relies on fundamentals.

Chance of winning over time

How this race’s odds have moved as polls and the national environment changed.

Lee +1 over the past 3 months
020406080100Aug 1Sep 1Oct 1

Out of 100. Today: Lee 99, O'Donnell 1.

What’s driving the forecast

The model blends each estimate by how much to trust it right now. Polls get 0% of the weight, 15 days out.

Polling average (after adjustments)—no polls
Partisan lean (Cook PVI, 2026 lines) D+1.0roughly 2 points of margin vs. the nation
National environment D+9.6generic ballot + presidential approval
Incumbent’s track record O'Donnell +0.9In 2024 they ran 1.8 pts more Republican than the state’s lean predicted; half carries over (max 10)
IncumbencyLee +3.6incumbent’s side
Fundamentals estimateLee +14.6±6 typical error
Expert ratings (average)—used only in the “+ Expert ratings” version
ForecastLee +14.6±5.7 standard deviation, including 2.3 for movement before Election Day

All three versions

  • Polls only: Susie Lee 99 in 100 (Solid D)
  • Polls + fundamentals: Susie Lee 99 in 100 (Solid D)
  • Polls + fundamentals + experts: Susie Lee 99 in 100 (Solid D)

Rules and notes

  • Incumbent renominated

House races, closest first · this is #114 of 421