In a motion filed Friday, West Virginia Attorney General Patrick Morrisey's office said that it would defend in federal court the state's law excluding gay couples from marriage.

New York-based Lambda Legal is representing 3 gay couples and the child of one couple in the lawsuit filed in October in U.S. District Court in Huntington. Lambda Legal claims in its filing that West Virginia's ban violates the 14th Amendment of the U.S. Constitution.

“The right to marry the person of one's choice, and to direct the course of one's life in this intimate realm without undue government interference is one of the fundamental liberty interests protected for all by the Due Process Clause of the United States Constitution,” the group said in its filing. “The State's exclusion of plaintiff couples and other same-sex couples from marriage violates their fundamental right to marry.”

The challenge did not name Morrisey, a Republican, as a defendant.

Kanawha County Clerk Vera McCormick was granted an extension on filing a response to the lawsuit to give Morrisey's office time to decide whether it would intervene, the AP reported.