Politics June 10, 2026 02:09 AM

Trump-Backed Marty O'Donnell Wins GOP Primary in Nevada House Battleground

O'Donnell to face Democratic incumbent Susie Lee in a closely divided Las Vegas-area district that could influence control of the U.S. House

By Nina Shah
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Marty O'Donnell, who received former President Donald Trump's endorsement and significant personal funding, secured the Republican nomination in Nevada's 3rd Congressional District primary. The seat, currently held by Democrat Susie Lee, is viewed as a competitive battleground that could play a role in determining which party controls the U.S. House in November.

Trump-Backed Marty O'Donnell Wins GOP Primary in Nevada House Battleground
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Key Points

  • O'Donnell captured the GOP nomination in Nevada's 3rd District and will challenge incumbent Democrat Susie Lee in November - this race is a competitive battleground that could influence which party controls the U.S. House.
  • The Republican primary was largely self-funded: O'Donnell loaned his campaign $3 million; Aury Nagy and Jeff Gunter loaned $1 million and $750,000, respectively. O'Donnell also received backing from the House GOP campaign arm's "MAGA Majority" program.
  • Because the district is closely divided - Lee won reelection in 2024 by nearly three percentage points even as Trump narrowly carried the district - the matchup is expected to draw national attention and substantial campaign spending. Sectors sensitive to shifts in congressional control include those affected by federal legislation and regulation.

On June 9, Republican voters in Nevada's 3rd Congressional District selected Marty O'Donnell as their nominee for the November general election. O'Donnell had been endorsed by U.S. President Donald Trump and prevailed in a competitive, largely self-funded primary field.

Primary field and financing

The Republican contest included four main contenders: Marty O'Donnell, video game composer and Trump endorsee; Aury Nagy, a neurosurgeon; Jeff Gunter, a former U.S. Ambassador to Iceland; and businesswoman Tera Anderson. Candidates in the race relied heavily on personal loans to their campaigns. O'Donnell loaned his campaign $3 million, while Nagy and Gunter each advanced $1 million and $750,000 to their efforts, respectively.

O'Donnell also received support from the House Republicans' campaign arm as part of its "MAGA Majority" program, which targets candidates running in battleground districts.

What comes next

As the Republican nominee, O'Donnell will face incumbent Democrat Susie Lee in the general election. Lee secured renomination and will be the Democratic candidate in November. The contest is expected to draw national attention and significant campaign spending ahead of the general election.

The 3rd District is considered closely divided. In 2024, Lee was reelected by nearly three percentage points even as Donald Trump narrowly carried the district, underscoring the competitive nature of the electorate and why the seat is among those viewed as potentially decisive for control of the U.S. House.

Implications for November

Party control of the House is narrow entering the election cycle, and this seat is among a handful across the country that could influence the balance of power. Given the district's recent voting patterns and the level of outside interest anticipated, the race is likely to command resources and attention from national campaign organizations as both parties seek to secure or retain a majority.


Key facts

  • Marty O'Donnell won the Republican primary in Nevada's 3rd Congressional District.
  • O'Donnell was endorsed by Donald Trump and loaned his campaign $3 million; rivals Aury Nagy and Jeff Gunter loaned $1 million and $750,000, respectively.
  • Democrat Susie Lee, the incumbent, won renomination and will face O'Donnell in November; the district is closely divided and could affect control of the U.S. House.

Risks

  • The outcome in November remains uncertain given the district's close partisan balance, as evidenced by Lee's narrow 2024 victory and Trump's narrow carry of the district.
  • Elevated national attention and anticipated heavy campaign spending could change the dynamics of the race in ways that are difficult to predict ahead of the general election.
  • Heavy self-funding by primary candidates shaped the nomination contest and may continue to affect campaign dynamics and messaging through November.

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