Elections for 17 of 33 seats in the Wisconsin State Senate will take place on Nov. 8, 2022. Republicans hold a 21-12 majority heading into the election.

This article details the five most expensive contested general elections in the State Senate.

This information comes from candidate reports to the Wisconsin Ethics Commission covering the period of Jan. 1, 2021, through Aug. 31, 2022.

Five general elections with the most fundraising

#1 District 31 – $352,044

Incumbent Jeff Smith (D) raised $276,754 and David Estenson (R) raised $75,290.

#2 District 17 – $345,549

Incumbent Howard Marklein (R) raised $328,899 and Pat Skogen (D) raised $16,649.

#3 District 25 – $315,335

Romaine Quinn (R) raised $161,444 and Kelly Westlund (D) raised $153,891.

#4 District 19 – $269,167

Rachael Cabral-Guevara (R) raised $172,495 and Kristin Alfheim (D) raised $96,672.

#5 District 27 – $178,770

Dianne Hesselbein (D) raised $97,057 and Robert Relph (R) raised $81,713.

The data above are based on campaign finance reports that active Wisconsin PACs submitted to the Wisconsin Ethics Commission. Political expenditures that are not controlled by candidates or their campaigns, known as satellite spending, are not included in candidate totals. Federal PACs are not required to report to state agencies.

Transparency USA publishes campaign finance data following major reporting deadlines. State or federal law may require filers to submit additional reports. Data from additional reports due in between the deadlines below are published along with the reports listed here.

This article is a joint publication from Ballotpedia and Transparency USA, who are working together to provide campaign finance information for state-level elections. Learn more about our work here.