Annette Ziegler became chief justice of the Wisconsin Supreme Court on May 1, beginning a two-year term in that role. Ziegler succeeds Patience Roggensack, who had served as chief justice since April 2015.
Ziegler was first elected to the court in 2007. She previously served as a Washington County Circuit Court judge, becoming the first female judge in that county.
Justices on the Wisconsin Supreme Court are officially nonpartisan. Ballotpedia’s State Court Partisanship Study identifies Ziegler as a mild Republican.
Until 2015, the justice with the longest continuous service on the Wisconsin Supreme Court served as the chief justice, unless that justice declined (in which case the role passed to the next senior justice of the court). Voters passed a state constitutional amendment in April of that year that changed the selection method to a vote by current justices.
Chief justices in Wisconsin and 22 other states are selected by chamber vote. Fourteen (14) states select chief justices by appointment, seven by popular vote, and six by seniority.