Amodei faced a primary challenge from far-right former Senate nominee Sharron Angle.

Clint Koble, former Nevada State Executive Director of the Farm Service Agency of the USDA, announced he was running for the Democratic nomination in November 2017.

[11] Jacky Rosen Democratic Susie Lee Democratic The 3rd congressional district occupies the area south of Las Vegas, including Henderson, and most of unincorporated Clark County and was created after the 2000 United States census.

Incumbent Democrat Jacky Rosen, who had represented the district since 2017, did not run for re-election; instead she ran against Dean Heller in the U.S. Senate election.

The early frontrunner was Cresent Hardy, who faced questions about his hiring of Benjamin Sparks, a Las Vegas political adviser who allegedly sexually enslaved and battered his ex-fiancée.

[51] This was a rematch of the 2014 election where Hardy upset Horsford to win, by just over 3,500 votes, in what was a strong year for Republicans nationally.