MILWAUKEE (AP) - Wisconsin voters on Tuesday advanced an incumbent Supreme Court justice and a Court of Appeals judge to an April showdown for a 10-year term on the state's highest court, a contest likely to play out along ideological lines after a sharply partisan primary. Rebecca Bradley, who has served on the court since Gov. Scott Walker appointed her to fill a vacancy the fall, and JoAnne Kloppenburg, a Court of Appeals judge, easily outpolled Milwaukee County Circuit Judge Joe Donald in Tuesday's primary.