The Wisconsin Constitution gives the Wisconsin Legislature “the power of impeaching all civil officers of this state for corrupt conduct in office, or for crimes and misdemeanors.” (Civil officer is not defined, however.)
If a majority of the state Assembly votes in favor of impeachment, the state Senate tries the impeachment. If two-thirds of the state Senate votes in favor of conviction, an impeached official would be removed and could be disqualified from holding “any office of honor, profit or trust under the state.” Republicans now have a two-thirds majority in the state Senate as a result of the 2022 midterm elections.
The provision allows for the impeachment of state elected officials such as governor, lieutenant governor and judges.
The only impeachment proceedings in Wisconsin history took place against a state Supreme Court justice in the mid-1800s — and he was acquitted.
Ballotpedia: Article VII, Wisconsin Constitution
Wisconsin State Legislature: Wisconsin Legislative Council information memorandum: Removal of elected officials
Wisconsin Courts: Wisconsin Court System