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First-time candidate breaks a Republican supermajority in the Iowa Senate

A photo shows one woman to the right who is talking to another woman who has her back to the camera. The woman to the left has her long hair in a gray ponytail. The woman to the right is holding a cell phone in her left and wearing a black dress. She has brown hair that goes just below her shoulders.
Sheila Brummer
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Iowa Public Radio
Democrat Catelin Drey talks to a supporter at a victory party at Jackson Street Brewery in Sioux City Aug. 26.

Catelin Drey hugged her young daughter when she won a special election for a spot in the Iowa Senate. A crowd of supporters, including family, friends and volunteers, erupted into applause upon hearing the news.

The 37-year-old Democrat won by 11 percentage points in a state Senate district that President Donald Trump carried by 10 points in 2024. Her win also took away a Republican supermajority in the Iowa Senate. Democrats will now control 17 seats, but Republicans still hold a majority with 33.

Catelin Drey victory party

“The supermajority is no longer, and I think that is obviously great for the Democrats. But more importantly, it is great for the constituents across the state of Iowa who deserve to have their voices heard, who no longer will have to have unpopular policies shoved down their throat with no hope of a debate or conversation around a bill,” said Drey, who works for an advertising company in Sioux City and is the founder of the advocacy group Moms for Iowa.

Drey said her top priority is to address the affordability crisis in Iowa.

"I think that we have to focus on what constituents are saying," Drey said. “How do we make housing more affordable? How do we make our child care more affordable? How do we make our health care more affordable, and I am ready to hit the ground running on those issues.”

Senate District 1 includes Sioux City and a portion of Woodbury County. Republican state Sen. Rocky De Witt represented the district before he died of pancreatic cancer in June.

Drey credited a grassroots campaign with volunteers from all over the state, and beyond, for helping her beat Republican Christopher Prosch, the owner of a media consulting firm.

“We have an opportunity to capitalize on this moment right now and into 2026. We showed that when you do the work and you talk to voters, that change is possible,” Drey said. "This was truly a team effort across the board. And I think people right now are desperate to do something that feels hopeful and feels like it can change the conversation, and that's what we did tonight."

A man is smiling and wearing a white polo shirt with tiny grey markings. He is wearing black shorts. He has brown facial hair and glasses.
Sheila Brummer
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Iowa Public Radio
Republican Christopher Prosch of Sioux City ran unsuccessfully in a special election for the Iowa Senate.

Both parties react to the results

Following his defeat, Prosch told reporters that running for office was humbling and difficult due to the tight timeline. He said he hoped Drey “will take the voice of the entire district with her.”

Iowa GOP Chairman Jeff Kaufmann wasn’t as gracious in a written statement.

"National Democrats were so desperate for a win that they activated 30,000 volunteers and a flood of national money to win a state Senate special election by a few hundred votes," Kaufmann said. "If the Democrats think things are suddenly so great again for them in Iowa, they will bring back the caucuses."

The campaign took on a negative tone when a mailer sent out by the Iowa Republican Party featured Drey with pink hair standing by an alien. It called her “kooky” and someone who supported letting “illegal aliens vote." Drey said the claim wasn’t valid in a IPR profile on the candidates.

“I'm really proud of the race that we ran," she said. "You know, we had a message that obviously resonated with voters."

Funny looking campaign advertisement. It shows a green alien to the left and a woman with pink hair and a red dress to the right. The main headline says "What Planet is Caitlin Drey From?"
Campaign mailer sent by the Republican Party of Iowa to potential voters leading up to a special election on Aug. 26.

The Woodbury County GOP congratulated Drey and the Woodbury County Democratic Party in a statement shared on social media.

"Despite a significant active voter registration advantage in the district, county and state, special elections across the nation have proven challenging, even in the reddest of states,” read the statement, adding that Prosch, “mobilized one of the most aggressive ground games we’ve seen, especially given the short window.”

Image of a Facebook post from the Woodbury County GOP. There is a graphic with a photo of a candidate that says "Christopher Prosch thanks for stepping up."
Facebook
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Woodbury County GOP
Woodbury County GOP posted this message on Facebook on election night.

Prosch’s platform aligned with many of Trump’s priorities, including cutting taxes, securing the border, school choice and restricting abortion rights.

Rita Hart, chair of the Iowa Democratic Party, said the special election results show Iowa is ready for a new direction. She said Iowa Democrats will continue to put forward candidates who can deliver better representation for Iowans.

“For the fourth special election in a row, Iowa voted for change,” Hart said in a statement. “Catelin Drey will listen to the people, not the powerful, get our economy growing and bring down costs for families. Christopher Prosch and Iowa Republicans spent over $180,000 on this race, while Democrats from all over Iowa came together to give money, knock doors and write postcards.”

A candid photo of a smiling man and woman in front of an old painted brick wall. The man is tall and is wearing a baseball cap and stripped polo shirt. The woman has brown hair and is wearing a dark shirt or dress.
Facebook
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J.D. Scholten
State Rep. J.D. Scholten posed for a selfie with Senator-elect Catelin Drey on the night of the special election in Sioux City.

State Rep. J.D. Scholten is currently the lone Democratic state lawmaker in northwest and northcentral Iowa. After Drey's win, he said he won't be the only Democrat elected in a "42-county region."

"She's done an amazing job with her campaign, and I’m excited for Iowa Senate District 1 to have great representation," Scholten said in a post with a photo of Drey at her victory party on election night.

The special election attracted extra attention

Woodbury County Election Commissioner Michelle Skaff said the race garnered national attention. She received inquiries about the special election from both CNN and The New York Times.

“It was amazing going to all the precincts. People were filtering through every time I went, no matter what time of the day it was — people were voting,” Skaff said. “And it was really nice to see that in an election like this, with one race and only 13 polling locations open in half of the county, it was a great turnout.”

 A graphic showing election results. Democrat Catelin Drey beat Christopher Prosch by 55% to 44%.
Courtesy: Woodbury County Election Commissioner
Unofficial election results from the special election for IA Senate District 1 on August 26, 2025. Catelin Drey won 18 out of 22 precincts.

Skaff also said around 3,300 absentee ballots were returned, which is 95% of the ballots requested.

“When Rocky [De Witt] ran, there were just over 5,000 absentees, so to have 3,300 absentees in this election, a special election with just one race, I think speaks for itself,” Skaff said.

Of the almost 32,000 registered voters in the 22 precincts of Senate District 1, 24% cast their ballots in the special election.

Sheila Brummer is IPR's Western Iowa Reporter, with expertise in reporting on immigrant and indigenous communities, agriculture, the environment and weather in order to help Iowans better understand their communities and the state. She's covered flooding in western Iowa, immigrants and refugees settling in Iowa, and scientific partnerships monitoring wildlife populations, among many more stories, for IPR, NPR and other media organizations. Brummer is a graduate of Buena Vista University.