Marty O'Donnell holds a commanding position in the June 9 Republican primary for Nevada's 3rd Congressional District, with traders assigning him over 96 percent implied probability. His advantage stems from substantial fundraising exceeding $3 million, name recognition from a 2024 primary run in the same open seat, and consistent conservative positioning aligned with President Trump. Other candidates, including former ambassador Jeff Gunter, physician Aury Nagy, and Tera Anderson, have failed to consolidate meaningful support despite early polling interest in Gunter. The primary's closed system and short timeline further limit opportunities for shifts. Scenarios that could still alter the outcome include a late Trump endorsement of a rival, which O'Donnell has publicly committed to respecting, or an unforeseen development in the final days before voting.