Wisconsin Senate's razor-thin GOP majority faces pivotal battles in four key districts
Republicans are working to protect a slim 18-seat lead in the Wisconsin Senate as four swing districts become decisive, backed by extensive fundraising and a focus on local campaigning.
In Wisconsin, the Senate's 18-seat Republican majority means only a single seat can be lost without flipping control, focusing the contest on four districts—5, 17, 21 and 31—where incumbents have stepped down. GOP leader Patrick Testin, heading the Committee to Elect a Republican Senate, has laid out an aggressive ground game, aiming to knock on 15,000-20,000 doors and allocating $1.5-$2.5 million to each competitive race.
Democrats, led by Senate Minority Leader Dianne Hesselbein, point to a national environment that favors them and target districts that backed Donald Trump in 2024. Fundraising totals show the Republican committee with nearly $5 million cash on hand, boosted by $2 million contributions each from Diane Hendricks and Elizabeth Uihlein. A lawsuit seeking to remove Republican candidate Michele Magadance Skinner from the ballot was blocked by a Dane County judge, highlighting ongoing legal battles. The Senate outcome is seen as crucial for the upcoming governor's race between David Crowley and Tom Tiffany, with Republicans hoping to retain a legislative counterbalance to any future administration.
Why it matters
The Senate's control will dictate Wisconsin's legislative agenda and influence the balance of power in the forthcoming governor's race.
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