The Obama administration wants a federal appeals court to dismiss a case which declared “Don't Ask, Don't Tell” unconstitutional, gay weekly Metro Weekly reported.

The legal challenge to the policy was filed by gay GOP group Log Cabin Republicans.

Last September, U.S. District Judge Virginia A. Phillips ruled that the law which bans gay and bisexual troops from serving openly is unconstitutional. The government appealed the ruling and the 9th U.S. Circuit Court of Appeals in San Francisco put the ruling on hold as it considers the government's appeal.

In December, Congress approved and President Barack Obama signed into law a bill that repeals “Don't Ask, Don't Tell” and the policy is set to expire on September 20.

On Thursday, lawyers for the Department of Justice urged the three-judge panel to vacate Phillips' ruling.

“And that's exactly what should happen when a case becomes moot on appeal,” Lawyer Henry Whitaker said.

Lawyers for the plaintiffs argued against the motion, saying a vacated ruling would allow the government to reintroduce the policy at a later date.

“If this case does not go forward on the merits and if you do not affirm it on the merits, the government will be completely unconstrained in its ability to again ban gay service in the military,” said Dan Woods, an attorney for Log Cabin Republicans.

The DOJ also reiterated its argument that DADT, as of Thursday, is constitutional. “We have continued to defend the constitutionality of the statute. And, again, it is very well established that the court applies the law as it now exits. And we have defended the constitutionality of the statute, as it is today. Whatever the current law is, your honors, we have defended it,” Whitaker said.