Our liberal friends in Wisconsin are unhappy. They think someone is leaking emails that make the state’s partisan campaign regulators look bad. We’ll plead guilty to having sources, but the emails are news and they sure are revealing. Today’s installment from court documents concerns how a special prosecutor and regulators at the Government Accountability Board (GAB) targeted the state’s conservative Supreme Court justices. The partisan goal was to force some justices to recuse themselves from hearing a constitutional challenge to their probe of Governor Scott Walker and his political allies. In a Feb. 11, 2013 email, then-GAB staff counsel Shane...