2027 Wisconsin Supreme Court election

The 2027 Wisconsin Supreme Court election will be held on April 6, 2027, to elect a justice of the Wisconsin Supreme Court for a ten-year term. Incumbent justice Annette Ziegler has announced that she will not run for re-election after serving on the court since August 2007. No candidates have announced for this election yet. The filing deadline to appear on the ballot is January 1, 2027.

Ziegler is associated with the conservative minority on the court, meaning that the 2027 election is not expected to affect the ideological majority of the court.

The Wisconsin Supreme Court tipped from a 4–3 conservative majority to a 4–3 liberal majority due to the 2023 Wisconsin Supreme Court election, which at that time was the most expensive judicial election in history. The liberals retained their 4–3 majority in the 2025 Wisconsin Supreme Court election, when that race became the most expensive judicial election in history.

The incumbent in 2027, Annette Ziegler, is a member of the conservative minority, and therefore the outcome of the election will not change the court's controlling ideology. At its closest, if Maria Lazar defeats Chris Taylor in 2026, the court will already be split with a 4–3 liberal majority, with Ziegler vacating one of the conservative seats. However, if Taylor defeats Lazar, a liberal victory in 2027 would further expand the majority from 5–2 to 6–1.

Ziegler announced in March 2026 that she would not run for re-election.^[1] This will be the fourth consecutive Wisconsin Supreme Court election without an incumbent on the ballot—a historically rare streak.

• Lyndsey Boon Brunette, Clark County circuit judge and former Clark County district attorney (2012–2016)^[2]

• Annette Ziegler,^[a] incumbent Supreme Court justice (2007–present)^[1]

• 2027 Wisconsin elections