MADISON, Wis. (AP) – An investigative group has asked a judge to reject a Republican state senator’s arguments that’s she’s immune from a lawsuit demanding records from her office.  The Center for Media and Democracy has filed a lawsuit demanding Leah Vukmir turn over records from an American Legislative Exchange Council conference. The state Justice Department has countered the Wisconsin Constitution provides lawmakers immunity from civil lawsuits during the legislative session.  CMD filed a brief with Dane County Circuit Judge Ellen Berz on Monday arguing again DOJ’s interpretation no one could ever sue a sitting lawmaker since the Legislature is in session year round. Recent legislative session have run continuously from the day lawmakers are sworn in until the next the next class takes the oath two years later, when the next session starts.