Catelin Drey won the Iowa Senate District 1 special election, flipping a Republican seat and breaking the GOP supermajority in the Iowa Senate.
Catelin Drey wins Iowa special election breaking GOP supermajority.

Drey flips Republican district, breaks supermajority in Iowa Senate
Source: siouxcityjournal.com
Key Evidence
Sioux City Journal reports Drey flipping a Republican district and breaking the supermajority.
siouxcityjournal.comsiouxcityjournal.comDrey flips Republican district, breaks supermajority in Iowa Senate
Des Moines Register confirms Democrats now hold 17 seats versus Republicans' 33, ending GOP's two-thirds supermajority.
desmoinesregister.comdesmoinesregister.comDemocrat Catelin Drey wins Iowa Senate special election, breaking Republican...
Iowa Capital Dispatch highlights Democratic celebration over breaking GOP supermajority with Drey's win.
iowacapitaldispatch.comiowacapitaldispatch.comIowa Democrats celebrate as Drey wins special election, breaks GOP supermajority...
What the Evidence Shows
Multiple independent and reliable news sources confirm that Catelin Drey, a Democratic candidate, won the special election for Iowa Senate District 1. This victory flipped a previously Republican-held seat to Democratic control. The result ended the Republican Party's two-thirds supermajority in the 50-member Iowa Senate, reducing their seats to 33 and increasing Democrats to 17. Key points from the sources include:
Drey is the first Democrat to represent this district since 2013, indicating a significant partisan shift.
The GOP had maintained a supermajority since the 2022 election, which allowed them to pass legislation and confirm gubernatorial nominees without Democratic support.
With the supermajority broken, Republicans will now require at least some Democratic support to pass certain measures.
The sources are consistent in their reporting of the election outcome and its political implications. The coverage includes local newspapers (Sioux City Journal), statewide media (Des Moines Register), and political news outlets (Iowa Capital Dispatch), all dated around August 26-27, 2025, confirming the timeliness and accuracy of the information. There is no contradictory evidence found in the provided sources.