U.S. House · IA-03

Rep. Zach Nunn (R)

Represents Iowa’s 3rd District, in office since Jan. 3, 2025. Official site (opens in a new tab)

Voting in Iowa? Check your registration, deadlines and options on vote.gov (opens in a new tab)

$14.15spent by the campaign for every vote cast in the 2024 general election
  • This race$14.15
  • Opponent$13.53
  • IA average$11.90
  • House average$8.13

Ranks 63 of 422 House members (1 = most spent per vote).

The 2026 raceIA-03: $24.3M in outside spending so far Every group spending in the race, primary and general, and each candidate’s fundraising.

The 2024 race

Votes and campaign spending in the 2024 race
CandidateVotesCampaign spentPer vote cast
Zach Nunn (R), won213,746 (51.8%)$5,840,705 (opens in a new tab)$14.15
Lanon Baccam (D)197,962 (47.9%)$5,585,059 (opens in a new tab)$13.53

Total votes cast: 412,905. “Per vote cast” is the campaign’s total spending for that election divided by all votes cast in the race.

Tracked issue money in 2026

Money from groups tracked on issue pages
IssueGroupsGivenBundledSpent forSpent against
HousingReal estate and home buildingRealtors PAC (RPAC), NAHB BUILD-PAC, NMHC PAC$20,000$0$62,051$0
Health care costsHospitals, doctors and drugmakersAHA PAC$6,000$0$0$0
AI & data centersAI and tech company PACsGoogle NetPAC, Amazon PAC$14,000$0$0$0
GunsGun rightsNRA-PVF, NSSF PAC$10,000$0$0$0
GunsGun safetyEverytown Victory Fund$0$0$0$3,564,973
Energy & climateOil and gas industryChevron PAC$7,500$0$0$0
Energy & climateEnvironmental groupsLCV Victory Fund, NRDC Action Votes$0$0$0$550,060
IsraelAIPAC and allied groupsAIPAC PAC$9,993$63,655$0$0
DefenseDefense contractorsRTX PAC, General Dynamics PAC$4,500$0$0$0

Results: MIT Election Data + Science Lab. Spending: FEC candidate totals for the 2024 election (as of Oct. 31, 2026). How this is calculated.