Democrat Steven Horsford outraised and outspent Republican Cresent Hardy in the race for a U.S. House seat that each held previously.
Horsford last month regained Nevada's 4th District seat, which he had held until 2014.
Campaign finance records show Horsford received about $2.26 million in donations during the election cycle, including $403,300 between Oct. 18 and Nov. 26.
He spent about $2.13 million throughout the race, including approximately $763,300 during the weeks surrounding the election.
Hardy took in about $899,600 during the race. Of that, about $120,100 came in during the weeks just before and after the election.
Hardy spent about $779,900 for the cycle, including $151,800 in the weeks before and after the election.
Hardy won the seat in 2014 but lost it two years later to Democrat Ruben Kihuen.