MADISON, Wis. (AP) — The Wisconsin Department of Justice is trying to put a hold on a Madison judge's ruling that parts of Gov. Scott Walker's collective bargaining restrictions are unconstitutional. Agency attorneys asked the state Supreme Court on Friday to stay Judge Juan Colas' 2012 ruling invalidating provisions in the restrictions that affect local public unions. The Supreme Court already has agreed to review the decision but DOJ argues a stay would ensure that union re-certification elections take place next month as per the restrictions. The agency also asked the 4th District Court of Appeals to stay a Colas ruling from earlier this week that found state labor relations officials in contempt of court for continuing to move ahead with the elections despite the 2012 ruling.