MADISON, Wis. — The Washington, D.C., attorney representing Wisconsin Supreme Court Chief Justice Shirley Abrahamson in her civil rights case against her peers serves on the board of directors of a George Soros-backed judicial group. Robert S. Peck is founder and president of the Center for Constitutional Litigation, which bills itself as “among the most sought-after appellate litigators within the plaintiffs’ bar.” Abrahamson tapped the constitutional law expert to represent her in a civil rights case that aims to save her powerful chief justice position from a voter-backed, state constitutional amendment approved at the polls last week. The amendment allows...