99chambers

Horizon · our Election Day forecast: polls, plus fundamentals like incumbency, fundraising and past results.

Pulse · polls only: where the races stand today, with no fundamentals and wider uncertainty.

What's the difference?

Iowa · Iowa's 3rd District · Updated Oct 16, 2026

Zach Nunn

RepublicanIncumbent

Incumbent U.S. representative

2026 race · Iowa's 3rd District

19% chance of winning · race rated Likely D

81%19%

28% chance of winning · race rated Lean D

72%28%
● Sarah Trone Garriott● Zach NunnINC
Full race forecast

Background

Current office
Iowa's 3rd District
Experience
Statewide office or Congress
Past races on file
6 (6 won)

Links: Wikipedia · FEC filings · Candidate list (source)

Electoral history

Earlier races in Iowa, newest first, matched by name in the results archive.

  1. 2024

    U.S. House · IA-3 Nov 5, 2024

    R · 51.9% · 213,746 votes

    Won
  2. 2022

    U.S. House · IA-3 Nov 8, 2022

    R · 50.3% · 156,262 votes

    Won
  3. 2018

    State Senate · SD-15 Nov 6, 2018

    R · 57.0% · 16,988 votes

    Won
  4. 2016

    House of Representatives · HD-30 Nov 8, 2016

    R · 62.0% · 11,442 votes

    Won
  5. 2014

    House of Representatives · HD-30 Nov 4, 2014

    R · 56.1% · 7,323 votes

    Won
  6. 2014

    House of Representatives · HD-30 primary · Jun 3, 2014

    R · 100.0% · 1,108 votes

    Won

Fundraising

Raised
$4.9M
From individuals
$1M
Spent
$1.4M
Cash on hand
$3.6M

Money: FEC, through Jun 30, 2026.

Opponents in 2026