Primaries for the special election to fill the seat representing Wisconsin’s 7th Congressional District in the U.S. House will be held on Tuesday, February 18. The seat was vacated by Sean Duffy (R) in September 2019.

Tom Tiffany and Jason Church will face off in the Republican primary. Church has received endorsements from U.S. Sens. Joni Ernst (R-Iowa) and Tom Cotton (R-Ark.), U.S. Reps. Adam Kinzinger (R-Ill.), Dan Crenshaw (R-Texas), and Brian Mast (R-Fla.), and organizations including SEAL PAC, Combat Veterans for Congress, and New Politics. Tiffany has been endorsed by U.S. Rep. Jim Sensenbrenner (R-Wis.), former U.S. Rep. Sean Duffy (R-Wis.), former Wisconsin Govs. Scott Walker (R) and Tommy Thompson (R), numerous state legislators, and organizations including the Club for Growth PAC, Americans for Prosperity Action, and the National Rifle Association.

Satellite spending in the Republican primary has included Club for Growth and United States Chamber of Commerce ad buys supporting Tiffany and a With Honor Fund ad buy supporting Church.

Michael Opela Sr. was disqualified from the Republican primary and is running as a write-in candidate.

Lawrence Dale and Tricia Zunker are facing off in the Democratic primary on February 18. Dale has campaigned on transitioning the area’s timber pulp industry to hemp pulp, growing the local farming industry, and passing Medicare for All. Zunker said that she would be a voice in Washington for local farmers and work to improve public education. She said she is “in favor of Medicare for All for those who want it.” Endorsements in the race have focused on Zunker, who has been endorsed by the Democratic Party of Wisconsin and Wisconsin 7th Congressional District Democratic Party, as well as United Steelworkers District 2 and the International Brotherhood of Electrical Workers Local 388.

The special general election will be held on May 12. Duffy, who was first elected in 2010, won his last election in 2018 by a margin of about 22 percentage points.