Incumbent Bryan Steil maintains a trader edge in Wisconsin’s 1st Congressional District due to the seat’s long Republican history, his substantial campaign treasury, and heavy outside spending on ads targeting Democratic challenger Mitchell Berman’s positions on healthcare and immigration. Recent Democratic polls show the race within one point, prompting the DCCC to add Berman to its Red to Blue program and the Cook Political Report to shift its rating to Lean Republican. Steil’s primary was uncontested while Berman won a four-way Democratic primary, but the incumbent’s financial and institutional advantages continue to anchor market probabilities ahead of the November 3 general election.