The Wisconsin Supreme Court is the highest appellate court in Wisconsin. The Supreme Court has jurisdiction over original actions, appeals from lower courts, and regulation or administration of the practice of law in Wisconsin. Location The Wisconsin Supreme Court normally sits in its main hearing room in the East Wing of the Wisconsin State Capitol building in Madison, Wisconsin. Since 1993, the court has also travelled, once or twice a year, to another part of the state to hear several cases as part of its "Justice on Wheels" program. The purpose of this program is to give the people of Wisconsin a better opportunity to understand the operations of the state supreme court and the court system. Justices The court is composed of seven justices who are elected in statewide, non-partisan elections. Each justice is elected for a ten-year term. Importantly, only one justice may be elected in any year. This avoids the sudden shifts in jurisprudence commonly seen in other state supreme courts, where the court composition can be radically shifted if two or three justices are simultaneously targeted for an electoral challenge based on their views on controversial issues. In the event of a vacancy on the court, the governor has the power to appoint an individual to the vacancy, but that justice must then stand for election in the first year in which no other justice's term expires. After passage of a referendum on April 7, 2015, the chief justice of the court is elected for a term of 2 years by the vote of a majority of the justices then serving on the court, although the justice so elected may decline the appointment. Previous to the change, the justice with the longest continuous service on the court served as the chief justice. Opponents of the referendum called it an attempt to remove longtime Chief Justice Shirley Abrahamson, a member of the court's liberal minority, while supporters called it an effort to promote democracy on the court. Current justices Controversies Recusal In 2009, the United States Supreme Court decided Caperton v. A.T. Massey Coal Co., holding 5–4 that a campaign expenditure of over $3 million by a corporate litigant to influence the election of a judge to the court that would hear its case, although legal, was an "extreme fact" that created a "probability of bias", thus requiring the judge to be recused from hearing the case.