Wisconsin state Supreme Court candidates, from left, Jennifer Dorow, Dan Kelly, Everett Mitchell and Janet Protasiewicz participate in a candidate forum in Madison on January 9.
Mandatory Credit:	John Hart/Wisconsin State Journal/AP

Wisconsin state Supreme Court candidates, from left, Jennifer Dorow, Dan Kelly, Everett Mitchell and Janet Protasiewicz participate in a candidate forum in Madison on January 9.
Mandatory Credit: John Hart/Wisconsin State Journal/AP

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Wisconsin voters head to polls for high-stakes state Supreme Court election

Wisconsin voters on Tuesday will cast their primary ballots in what's turned into an expensive and high-stakes battle for control of the state Supreme Court in a key political battleground where power is divided between a Democratic governor and a Republican-controlled legislature.