A husband-wife team from two Washington, D.C., law offices filed suit Wednesday challenging strict new government guidelines for adopting Native American children in the aftermath of a landmark 2013 U.S. Supreme Court ruling.

Lori Alvino McGill, a partner at Quinn Emanuel Urquhart & Sullivan, and her husband Matthew McGill, a partner at Gibson, Dunn & Crutcher, filed the case on behalf of the National Council for Adoption and other groups and individuals, including birth parents who placed Indian children with non-Indian adoptive parents.