Plaintiffs in a case challenging West Virginia's gay marriage ban last week filed a motion for summary judgment.

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 argues that West Virginia's ban violates the Due Process Clause and Equal Protection Clause of the Fourteenth Amendment.

In their filing, lawyers asked U.S. District Judge Robert C. Chambers to strike down the state's law, enacted in 2000, prohibiting their clients from marrying, saying that it is unconstitutional under any standard of review.

“West Virginia's marriage ban shares all the hallmarks of irrational discrimination that have been present in prior Supreme Court cases that struck down laws violating even the lowest level of equal protection scrutiny,” the filing reads. “Even if the Court does not apply heightened scrutiny (although it should), none of the likely proffered rationales for West Virginia's marriage ban can withstand constitutional review.”

Beth Littrell, a senior attorney in Lambda Legal's Southern Regional Office, said in a statement that denying gay couples the right to marry “sends a message that they are second class citizens and their families are not worthy of equal dignity and respect.”

“This case is about fairness and equality for these West Virginia families, and we are asking the court to recognize that the Constitution's guarantee of equal protection under the law applies to everyone,” Littrell said.

A scheduling conference takes place next week.