Attorney General Kathleen Kane is seeking to be dismissed from a federal lawsuit pending in Philadelphia that challenges Pennsylvania's same-sex marriage ban.
The case involves a lesbian couple who are seeking to force the state to recognize their Massachusetts marriage license.
Kane filed a motion Monday arguing that the plaintiffs in the case failed to show her office was involved in any violation of their rights.
Kane contends that the state departments of Health and Revenue are more involved in the issues raised by plaintiffs Cara Palladino and Isabelle Barker.
Gov. Tom Corbett, Kane's co-defendant in the case, previously filed a motion seeking dismissal of all claims against him.
At least five other challenges of Pennsylvania's ban on same-sex marriage are pending in state and federal courts.