Wis. Stat. § 11.0102

(1) Each committee and conduit required to register and report under this chapter shall have and shall file each registration statement and report required under this chapter with the commission, except that a candidate committee for a candidate for school board member shall file a registration statement with the commission and a copy of the registration statement with the school district clerk. No candidate may appear on a ballot for any elective office unless the candidate committee files a registration statement for each election at which the candidate runs for office.