Incumbent Susie Lee (D), Marty O'Donnell (R), and Jon Kamerath (Independent American Party) are running in the general election for Nevada's 3rd Congressional District on November 3, 2026.

The Nevada Independent's Gabby Birenbaum said, "The district, which last elected a Republican in 2014, has been something of a white whale for House Republicans. Because it shares the often pricey media market with Districts 1 and 4 in Las Vegas, it can be difficult for Republicans to target spending in the district." Lee won re-election 52.0%–48.0% in 2022 and 51.4%–48.6% in 2024. That year, Donald Trump (R) defeated Kamala Harris (D) 49.5%–48.8% in the 3rd District. As of July 2026, major election forecasters rated the general election Lean Democratic.

Lee was first elected to the House in 2018. She earlier worked as a nonprofit executive. Lee's campaign website says, "From combating the drought, to bringing supply chains back to America to lower costs, to ensuring our veterans get the benefits they deserve, Susie Lee has effectively worked with both parties and delivered for Nevadans. In fact, she was recognized as one of the top 10 most bipartisan Members of Congress."

O'Donnell is a former composer and sound designer in the film and video game industries. He ran for the 3rd District in 2024, placing fourth in the Republican primary with 20.4% of the vote. O'Donnell's campaign website says, "One good job should be enough; it used to be enough. And it can be again. I'm tired of seeing our leaders influenced by special interests and big corporations, rigging the system against working people and making it too difficult for families to make ends meet."

As of June 30, 2026, Lee had raised $4.4 million and O'Donnell had raised $4.1 million.

The outcome of this race will affect the partisan balance of the U.S. House of Representatives in the 120th Congress. All 435 U.S. House districts are up for election.

Currently, Republicans have a 219-212 majority with four vacancies in the chamber.