Trump-backed Republican Marty O'Donnell wins Nevada primary for key House seat

June 10, 2026 2:09 AM EDT

By Nolan D. ‌McCaskill

June 9 (Reuters) - ​Marty ​O'Donnell, backed by U.S. President Donald Trump, won the Republican primary on Tuesday for Nevada’s ‌3rd Congressional District, a Las Vegas-area battleground that ⁠could help decide control of the U.S. House of Representatives ‌in November, U.S. media ‌projected.

The seat, held by Democrat Susie Lee, is among a handful across the country expected to be ​decisive in determining the balance of power in Congress, with Republicans currently holding a narrow House ⁠majority.

The Republican primary featured a competitive, largely self-funded field, including Trump-endorsed video ​game composer Marty O'Donnell, neurosurgeon Aury Nagy and former U.S. Ambassador to Iceland Jeff Gunter. ​A fourth candidate is businesswoman ‌Tera Anderson.

O'Donnell, who loaned his campaign $3 million, is also backed by House Republicans' campaign ⁠arm as a member of its "MAGA Majority" program, which supports candidates in battleground districts. Nagy and Gunter have loaned ⁠their campaigns $1 million and $750,000, respectively.

The Republican nominee will now challenge ​Lee, who won her renomination bid, in a race expected to draw national attention and significant campaign spending ahead of November’s ‌elections.

Lee won reelection in 2024 by nearly 3 percentage points even as Trump ‌narrowly carried the district, underscoring its status as a ⁠closely divided electorate.

(Reporting by ‌Nolan D. McCaskill; ​Additional reporting by Angela Christy in Bengaluru. Editing by Howard Goller, Tom Hogue and Mark ‌Potter)



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