Rep. Dean Kaufert (R-Neenah) criticized heavy spending in state legislative races, which is likely to continue this year, as he announced his retirement Monday. His departure creates an open race for a swing Assembly district that could help determine control of the Assembly. 

Kaufert said in a statement that family and health concerns have led him to retirement. 

“After a great deal of thought and reflection, there comes a time when you simply know it is time,” Kaufert said.  “Family and health concerns have led me to this decision, but it is not one I make lightly.  Representing the Fox Valley has been an honor and privilege.”

Kaufert represents Assembly District 53, which encompasses Neenah, Menasha and part of Appleton. Kaufert was the mayor of Neenah from 2014 to 2022 and also previously served in the state Assembly from 1991 to 2015. 

With new, more competitive legislative maps adopted in 2024, Kaufert came out of retirement to run for the state Assembly in 2024 and won in a close race to the Democratic candidate by about 360 votes — a result that helped Republicans maintain their majority during the 2025-26 legislative session. 

“Making a difference and standing up for those who need a voice — the little guy — has been at the heart of everything I have done,” he said. 

Assembly Majority Leader Tyler August (R-Walworth) thanked Kaufert for his service in a statement. 

“Dean’s decision to return to the Legislature for one more term speaks to his commitment to public service and to this institution. He didn’t have to come back but he chose to step forward and serve again, and we are better for it,” August said. 

Kaufert’s retirement means Republicans will not have the advantage of incumbency in the race for his seat and opens up the race for the district, which will help determine control of the state Assembly in 2027. 

Republican lawmakers currently hold 54 seats in the Assembly to Democrats’ 45 seats, meaning Democrats  would need to hold all their seats and win five additional seats in November to win the majority. 

Kaufert is now the eighth Assembly Republican to decide against running for reelection this session — the first from a swing district. 

Devin Remiker, chair of the Democratic Party of Wisconsin, said in a social media post that the seat is crucial for an Assembly majority, noting that when the district elected Kaufert, it also voted for former Vice President Kamala Harris in the 2024 presidential race by 4.4 percentage points. The district recently voted for Justice-elect Chris Taylor, the Democratic-backed candidate in the April state Supreme Court race by 27.5 percentage points. 

“Republicans see the writing on the wall and the big victory in April has made it clearer than ever that change is coming to Wisconsin this November,” Remiker said. 

Other Republican lawmakers are planning their reelection bids including two incumbents from swing districts: Rep. Shannon Zimmerman (R-River Falls) and Rep. Benjamin Franklin (R- De Pere). 

In his announcement, Kaufert said the political environment in the state Assembly has improved and has led to more bipartisan work, but criticized the increasing negativity and spending in campaigns for office. 

“Campaigns have become increasingly more negative, with vicious personal attacks and an overwhelming influx of out-of-state special interest money,” Kaufert said. “The ‘win-at-all-costs’ mentality — where opponents are too often demonized and unfairly personally attacked — has taken a real toll on me and my family.”

Kaufert said that both parties are to blame, but called the amount of spending by Democrats on his seat, which pays a salary of about $60,000, “ridiculous.” In 2024, Kaufert’s Democratic opponent spent $1.76 million in his campaign for the seat. Kaufert spent $1.24 million, according to campaign finance reports.

Spending on campaigns will likely continue to increase this year, especially with control of the chambers on the line, and Democrats are already investing in the seats that could help determine control.

The Assembly Democratic Campaign Committee, the fundraising arm for the Assembly Democratic caucus, contributed $1 million to Rep. Steve Doyle’s reelection campaign, according to his latest campaign finance reports. It was the most of any Assembly incumbents, according to WisPolitics. The Onalaska Democrat is one of the most “vulnerable” Democratic incumbents, having won his last election in 2024 by just 223 votes. 

Wisconsin election campaign finance laws, adopted in 2015 under the leadership of former Gov. Scott Walker and the Republican-led Legislature, allow political parties to accept unlimited donations from individuals and corporations and transfer unlimited funds to state-level candidates, including those for Assembly.