The 2007 Wisconsin Supreme Court election was held on April 3, 2007, to elect a justice to the Wisconsin Supreme Court for a ten-year term. Washington County circuit court judge Annette Ziegler defeated Madison attorney Linda M. Clifford. As more than two candidates filed to run, a nonpartisan election was held on February 20, 2007 in which attorney Joseph Sommers was eliminated. Incumbent justice Jon P. Wilcox did not seek re-election.

Primary election

Candidates

Advanced

Linda M. Clifford, attorney Annette Ziegler, judge of the Washington County Circuit Court (Branch 2)

Eliminated in primary

Joseph Sommers, attorney

Declined

Jon P. Wilcox, incumbent justice

Primary results

General election

Campaign A major focus of the campaign was the ideological lean of the candidates. Zeigler was described as being ideologically conservative, while Clifford was described as being ideologically liberal. The outgoing judge, Jon P. Wilcox, was an ideological conservative. At the time of the election, the court was considered to have a "liberal majority" ideological composition, with 3 liberal justices, 3 conservative justices, and 1 centrist justice.

Results Since Ziegler's victory meant the seat remained held by a conservative, no shift occurred to the court's ideological lean.

| colspan="6" style="text-align:center;background-color: #e9e9e9;"| Primary Election (February 20, 2007)

| colspan="6" style="text-align:center;background-color: #e9e9e9;"| General election (April 3, 2007)

References