Flipped from RepublicanCalledUnofficial resultsIncumbent defeated
Iowa House District 46
Iowa House of Representatives · Iowa
Mandy Newton Rosenow flipped the seat for Democrats, winning by 1.5 points over Dan Gehlbach.
Mandy Newton RosenowDemocrat · winner
50.7%9,064
Dan GehlbachRepublican · incumbent
49.2%8,800
Write-inOther party
0.1%16
17,880 votes
Source: Iowa Secretary of State unofficial resultsUpdated Nov 7, 2026, 1:35 PM ET
Where the race moved
Against the 2024 presidential vote
The seat's recent races
Source: Past results: 99chambers results archive (MEDSL, Klarner, state election offices)
Money in this race
Each line compares the two campaigns on one scale.
Mandy Newton RosenowDan Gehlbach
$19.1K
Raised by the campaign
$19.1K
$8.7K
Spent by the campaign
$7.6K
Campaign money: Iowa Ethics and Campaign Disclosure Board, through May 24, 2026; Iowa Ethics and Campaign Disclosure Board, through May 6, 2026.
Source: Iowa Ethics and Campaign Disclosure Board campaign filingsUpdated May 24, 2026
Pre-election forecast (final, Nov 3)
Our model's last run before Election Day, Nov 3, 2026. It no longer updates.
- Mandy Newton Rosenow
- 51%
- Dan Gehlbach
- 49%
- Projected margin
- D+0.2
The candidates
Mandy Newton Rosenow (D)Dan Gehlbach (R)
Incumbent, Iowa House of Representatives, first elected 2022
Incumbent, Iowa House of Representatives, first elected 2022
Also on the ballot: Write-in (Other party), 0.1%