MADISON, Wis. -

Wisconsin Democrats are asking Gov. Scott Walker and fellow Republican Attorney General J.B. Van Hollen to drop their defense of the state's gay marriage ban, arguing it's a waste of money.

Fifteen Democratic state senators and 25 Democratic representatives sent letters to Walker and Van Hollen on Wednesday.

Van Hollen last week appealed a federal judge's ruling that the state's ban is unconstitutional. Walker is a named defendant in the lawsuit.

Walker spokeswoman Jocelyn Webster says "Walker takes seriously the oath of office that he took to support the Wisconsin Constitution. If others do not take that oath seriously, that is their decision."

Van Hollen spokeswoman Dana Brueck says he is fulfilling his oath and doing his job.

No date has been set for oral arguments in the case.

State asks full court to hear marriage case

Wisconsin attorneys have asked the entire 7th Circuit Court of Appeals to hear their arguments on upholding the state's gay marriage ban.

Federal judges have struck down bans in both Wisconsin and Indiana. The 7th Circuit Court of Appeals consolidated both states' appeals last week.

Ten judges sit on the 7th Circuit but three-judge panels typically decide cases.

Indiana attorneys have asked all 10 to hear the case. Wisconsin tried to join Indiana's request Monday but the court told state attorneys to file a separate motion.

They filed the brief Wednesday afternoon, saying all 10 judges should weigh in because gay marriage is an issue of national importance.

Meanwhile on Wednesday the court canceled oral arguments set for Aug. 13. The court plans to set a new date later.