Four couples challenging Idaho's gay marriage ban this week asked a federal judge to block the state from intervening in their lawsuit, arguing such a move would unnecessarily add to their workload and complicate the case. They first filed their complaint in U.S. District Court in November against Gov. C.L. "Butch" Otter and Ada County Clerk Chris Rich, contending Idaho's 2006 voter-backed law banning gay marriage violates the U.S. Constitution's equal protection and due process guarantees. Deborah Ferguson, the couples' Boise-based lawyer, contends allowing Idaho Attorney General Lawrence Wasden to intervene on behalf of the state isn't necessary, since Otter is already an adequate representative of the state's interests/Associated Press. More here.